src/HOL/Tools/ATP/atp_problem_generate.ML
author blanchet
Wed, 21 Mar 2012 16:53:24 +0100
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permissions -rw-r--r--
generate weights and precedences for predicates as well
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(*  Title:      HOL/Tools/ATP/atp_problem_generate.ML
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    Author:     Fabian Immler, TU Muenchen
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    Author:     Makarius
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    Author:     Jasmin Blanchette, TU Muenchen
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Translation of HOL to FOL for Metis and Sledgehammer.
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*)
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signature ATP_PROBLEM_GENERATE =
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sig
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  type ('a, 'b) ho_term = ('a, 'b) ATP_Problem.ho_term
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  type connective = ATP_Problem.connective
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  type ('a, 'b, 'c) formula = ('a, 'b, 'c) ATP_Problem.formula
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  type atp_format = ATP_Problem.atp_format
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  type formula_kind = ATP_Problem.formula_kind
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  type 'a problem = 'a ATP_Problem.problem
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  datatype scope = Global | Local | Assum | Chained
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  datatype status =
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    General | Induct | Intro | Spec_Intro | Elim | Simp | Spec_Eq
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  type stature = scope * status
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  datatype polymorphism = Polymorphic | Raw_Monomorphic | Mangled_Monomorphic
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  datatype strictness = Strict | Non_Strict
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  datatype granularity = All_Vars | Positively_Naked_Vars | Ghost_Type_Arg_Vars
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  datatype type_level =
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    All_Types |
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    Noninf_Nonmono_Types of strictness * granularity |
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    Fin_Nonmono_Types of granularity |
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    Const_Arg_Types |
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    No_Types
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  type type_enc
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  val no_lamsN : string
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  val hide_lamsN : string
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  val liftingN : string
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  val combsN : string
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  val combs_and_liftingN : string
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  val combs_or_liftingN : string
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  val lam_liftingN : string
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  val keep_lamsN : string
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  val schematic_var_prefix : string
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  val fixed_var_prefix : string
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  val tvar_prefix : string
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  val tfree_prefix : string
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  val const_prefix : string
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  val type_const_prefix : string
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  val class_prefix : string
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  val lam_lifted_prefix : string
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  val lam_lifted_mono_prefix : string
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  val lam_lifted_poly_prefix : string
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  val skolem_const_prefix : string
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  val old_skolem_const_prefix : string
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  val new_skolem_const_prefix : string
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  val combinator_prefix : string
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  val type_decl_prefix : string
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  val sym_decl_prefix : string
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  val guards_sym_formula_prefix : string
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  val tags_sym_formula_prefix : string
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  val fact_prefix : string
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  val conjecture_prefix : string
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  val helper_prefix : string
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  val class_rel_clause_prefix : string
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  val arity_clause_prefix : string
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  val tfree_clause_prefix : string
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  val lam_fact_prefix : string
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  val typed_helper_suffix : string
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  val untyped_helper_suffix : string
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  val predicator_name : string
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  val app_op_name : string
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  val type_guard_name : string
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  val type_tag_name : string
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  val native_type_prefix : string
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  val prefixed_predicator_name : string
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  val prefixed_app_op_name : string
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  val prefixed_type_tag_name : string
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  val ascii_of : string -> string
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  val unascii_of : string -> string
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  val unprefix_and_unascii : string -> string -> string option
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  val proxy_table : (string * (string * (thm * (string * string)))) list
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  val proxify_const : string -> (string * string) option
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  val invert_const : string -> string
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  val unproxify_const : string -> string
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  val new_skolem_var_name_from_const : string -> string
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  val atp_irrelevant_consts : string list
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  val atp_schematic_consts_of : term -> typ list Symtab.table
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  val is_type_enc_higher_order : type_enc -> bool
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  val polymorphism_of_type_enc : type_enc -> polymorphism
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  val level_of_type_enc : type_enc -> type_level
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  val is_type_enc_quasi_sound : type_enc -> bool
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  val is_type_enc_fairly_sound : type_enc -> bool
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  val type_enc_from_string : strictness -> string -> type_enc
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  val adjust_type_enc : atp_format -> type_enc -> type_enc
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  val mk_aconns :
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    connective -> ('a, 'b, 'c) formula list -> ('a, 'b, 'c) formula
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  val unmangled_const : string -> string * (string, 'b) ho_term list
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  val unmangled_const_name : string -> string list
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  val helper_table : ((string * bool) * thm list) list
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  val trans_lams_from_string :
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    Proof.context -> type_enc -> string -> term list -> term list * term list
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  val factsN : string
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  val prepare_atp_problem :
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    Proof.context -> atp_format -> formula_kind -> formula_kind -> type_enc
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    -> bool -> string -> bool -> bool -> bool -> term list -> term
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    -> ((string * stature) * term) list
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    -> string problem * string Symtab.table * (string * stature) list vector
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       * (string * term) list * int Symtab.table
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  val atp_problem_selection_weights : string problem -> (string * real) list
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  val atp_problem_term_order_info : string problem -> (string * int) list
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end;
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structure ATP_Problem_Generate : ATP_PROBLEM_GENERATE =
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struct
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open ATP_Util
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open ATP_Problem
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type name = string * string
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val no_lamsN = "no_lams" (* used internally; undocumented *)
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val hide_lamsN = "hide_lams"
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val liftingN = "lifting"
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val combsN = "combs"
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val combs_and_liftingN = "combs_and_lifting"
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val combs_or_liftingN = "combs_or_lifting"
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val keep_lamsN = "keep_lams"
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val lam_liftingN = "lam_lifting" (* legacy *)
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(* It's still unclear whether all TFF1 implementations will support type
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   signatures such as "!>[A : $tType] : $o", with ghost type variables. *)
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val avoid_first_order_ghost_type_vars = false
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val bound_var_prefix = "B_"
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val all_bound_var_prefix = "BA_"
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val exist_bound_var_prefix = "BE_"
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val schematic_var_prefix = "V_"
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val fixed_var_prefix = "v_"
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val tvar_prefix = "T_"
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val tfree_prefix = "t_"
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val const_prefix = "c_"
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val type_const_prefix = "tc_"
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val native_type_prefix = "n_"
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val class_prefix = "cl_"
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(* Freshness almost guaranteed! *)
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val atp_prefix = "ATP" ^ Long_Name.separator
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val atp_weak_prefix = "ATP:"
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val lam_lifted_prefix = atp_weak_prefix ^ "Lam"
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val lam_lifted_mono_prefix = lam_lifted_prefix ^ "m"
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val lam_lifted_poly_prefix = lam_lifted_prefix ^ "p"
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val skolem_const_prefix = atp_prefix ^ "Sko"
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val old_skolem_const_prefix = skolem_const_prefix ^ "o"
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val new_skolem_const_prefix = skolem_const_prefix ^ "n"
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val combinator_prefix = "COMB"
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val type_decl_prefix = "ty_"
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val sym_decl_prefix = "sy_"
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val guards_sym_formula_prefix = "gsy_"
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val tags_sym_formula_prefix = "tsy_"
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val uncurried_alias_eq_prefix = "unc_"
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val fact_prefix = "fact_"
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val conjecture_prefix = "conj_"
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val helper_prefix = "help_"
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val class_rel_clause_prefix = "clar_"
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val arity_clause_prefix = "arity_"
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val tfree_clause_prefix = "tfree_"
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val lam_fact_prefix = "ATP.lambda_"
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val typed_helper_suffix = "_T"
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val untyped_helper_suffix = "_U"
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val predicator_name = "pp"
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val app_op_name = "aa"
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val type_guard_name = "gg"
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val type_tag_name = "tt"
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val prefixed_predicator_name = const_prefix ^ predicator_name
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val prefixed_app_op_name = const_prefix ^ app_op_name
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val prefixed_type_tag_name = const_prefix ^ type_tag_name
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(*Escaping of special characters.
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  Alphanumeric characters are left unchanged.
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  The character _ goes to __
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  Characters in the range ASCII space to / go to _A to _P, respectively.
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  Other characters go to _nnn where nnn is the decimal ASCII code.*)
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val upper_a_minus_space = Char.ord #"A" - Char.ord #" "
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fun stringN_of_int 0 _ = ""
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  | stringN_of_int k n =
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    stringN_of_int (k - 1) (n div 10) ^ string_of_int (n mod 10)
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fun ascii_of_char c =
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  if Char.isAlphaNum c then
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    String.str c
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  else if c = #"_" then
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    "__"
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  else if #" " <= c andalso c <= #"/" then
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    "_" ^ String.str (Char.chr (Char.ord c + upper_a_minus_space))
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  else
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    (* fixed width, in case more digits follow *)
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    "_" ^ stringN_of_int 3 (Char.ord c)
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val ascii_of = String.translate ascii_of_char
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(** Remove ASCII armoring from names in proof files **)
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(* We don't raise error exceptions because this code can run inside a worker
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   thread. Also, the errors are impossible. *)
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val unascii_of =
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  let
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    fun un rcs [] = String.implode(rev rcs)
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      | un rcs [#"_"] = un (#"_" :: rcs) [] (* ERROR *)
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        (* Three types of _ escapes: __, _A to _P, _nnn *)
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      | un rcs (#"_" :: #"_" :: cs) = un (#"_" :: rcs) cs
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      | un rcs (#"_" :: c :: cs) =
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        if #"A" <= c andalso c<= #"P" then
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          (* translation of #" " to #"/" *)
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          un (Char.chr (Char.ord c - upper_a_minus_space) :: rcs) cs
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        else
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          let val digits = List.take (c :: cs, 3) handle General.Subscript => [] in
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            case Int.fromString (String.implode digits) of
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              SOME n => un (Char.chr n :: rcs) (List.drop (cs, 2))
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            | NONE => un (c :: #"_" :: rcs) cs (* ERROR *)
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          end
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      | un rcs (c :: cs) = un (c :: rcs) cs
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  in un [] o String.explode end
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(* If string s has the prefix s1, return the result of deleting it,
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   un-ASCII'd. *)
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fun unprefix_and_unascii s1 s =
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  if String.isPrefix s1 s then
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    SOME (unascii_of (String.extract (s, size s1, NONE)))
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  else
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    NONE
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val proxy_table =
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  [("c_False", (@{const_name False}, (@{thm fFalse_def},
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       ("fFalse", @{const_name ATP.fFalse})))),
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   ("c_True", (@{const_name True}, (@{thm fTrue_def},
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       ("fTrue", @{const_name ATP.fTrue})))),
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   ("c_Not", (@{const_name Not}, (@{thm fNot_def},
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       ("fNot", @{const_name ATP.fNot})))),
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   ("c_conj", (@{const_name conj}, (@{thm fconj_def},
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       ("fconj", @{const_name ATP.fconj})))),
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   ("c_disj", (@{const_name disj}, (@{thm fdisj_def},
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       ("fdisj", @{const_name ATP.fdisj})))),
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   ("c_implies", (@{const_name implies}, (@{thm fimplies_def},
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       ("fimplies", @{const_name ATP.fimplies})))),
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   ("equal", (@{const_name HOL.eq}, (@{thm fequal_def},
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       ("fequal", @{const_name ATP.fequal})))),
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   ("c_All", (@{const_name All}, (@{thm fAll_def},
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       ("fAll", @{const_name ATP.fAll})))),
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   ("c_Ex", (@{const_name Ex}, (@{thm fEx_def},
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       ("fEx", @{const_name ATP.fEx}))))]
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val proxify_const = AList.lookup (op =) proxy_table #> Option.map (snd o snd)
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(* Readable names for the more common symbolic functions. Do not mess with the
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   table unless you know what you are doing. *)
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val const_trans_table =
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  [(@{type_name Product_Type.prod}, "prod"),
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   (@{type_name Sum_Type.sum}, "sum"),
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   (@{const_name False}, "False"),
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   (@{const_name True}, "True"),
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   (@{const_name Not}, "Not"),
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   (@{const_name conj}, "conj"),
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   (@{const_name disj}, "disj"),
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   (@{const_name implies}, "implies"),
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   (@{const_name HOL.eq}, "equal"),
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   (@{const_name All}, "All"),
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   (@{const_name Ex}, "Ex"),
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   (@{const_name If}, "If"),
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   (@{const_name Set.member}, "member"),
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   (@{const_name Meson.COMBI}, combinator_prefix ^ "I"),
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   (@{const_name Meson.COMBK}, combinator_prefix ^ "K"),
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   (@{const_name Meson.COMBB}, combinator_prefix ^ "B"),
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   (@{const_name Meson.COMBC}, combinator_prefix ^ "C"),
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   (@{const_name Meson.COMBS}, combinator_prefix ^ "S")]
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  |> Symtab.make
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  |> fold (Symtab.update o swap o snd o snd o snd) proxy_table
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(* Invert the table of translations between Isabelle and ATPs. *)
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val const_trans_table_inv =
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  const_trans_table |> Symtab.dest |> map swap |> Symtab.make
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val const_trans_table_unprox =
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  Symtab.empty
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  |> fold (fn (_, (isa, (_, (_, atp)))) => Symtab.update (atp, isa)) proxy_table
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val invert_const = perhaps (Symtab.lookup const_trans_table_inv)
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val unproxify_const = perhaps (Symtab.lookup const_trans_table_unprox)
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fun lookup_const c =
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  case Symtab.lookup const_trans_table c of
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    SOME c' => c'
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  | NONE => ascii_of c
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fun ascii_of_indexname (v, 0) = ascii_of v
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  | ascii_of_indexname (v, i) = ascii_of v ^ "_" ^ string_of_int i
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fun make_bound_var x = bound_var_prefix ^ ascii_of x
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fun make_all_bound_var x = all_bound_var_prefix ^ ascii_of x
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fun make_exist_bound_var x = exist_bound_var_prefix ^ ascii_of x
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fun make_schematic_var v = schematic_var_prefix ^ ascii_of_indexname v
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fun make_fixed_var x = fixed_var_prefix ^ ascii_of x
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fun make_schematic_type_var (x, i) =
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  tvar_prefix ^ (ascii_of_indexname (unprefix "'" x, i))
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fun make_fixed_type_var x = tfree_prefix ^ (ascii_of (unprefix "'" x))
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(* "HOL.eq" and choice are mapped to the ATP's equivalents *)
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local
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  val choice_const = (fst o dest_Const o HOLogic.choice_const) Term.dummyT
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  fun default c = const_prefix ^ lookup_const c
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in
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  fun make_fixed_const _ @{const_name HOL.eq} = tptp_old_equal
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    | make_fixed_const (SOME (THF (_, _, THF_With_Choice))) c =
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      if c = choice_const then tptp_choice else default c
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    | make_fixed_const _ c = default c
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end
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fun make_fixed_type_const c = type_const_prefix ^ lookup_const c
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fun make_type_class clas = class_prefix ^ ascii_of clas
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fun new_skolem_var_name_from_const s =
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  let val ss = s |> space_explode Long_Name.separator in
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    nth ss (length ss - 2)
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  end
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(* These are either simplified away by "Meson.presimplify" (most of the time) or
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   handled specially via "fFalse", "fTrue", ..., "fequal". *)
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val atp_irrelevant_consts =
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  [@{const_name False}, @{const_name True}, @{const_name Not},
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   @{const_name conj}, @{const_name disj}, @{const_name implies},
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   @{const_name HOL.eq}, @{const_name If}, @{const_name Let}]
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val atp_monomorph_bad_consts =
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  atp_irrelevant_consts @
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  (* These are ignored anyway by the relevance filter (unless they appear in
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     higher-order places) but not by the monomorphizer. *)
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  [@{const_name all}, @{const_name "==>"}, @{const_name "=="},
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   @{const_name Trueprop}, @{const_name All}, @{const_name Ex},
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   @{const_name Ex1}, @{const_name Ball}, @{const_name Bex}]
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fun add_schematic_const (x as (_, T)) =
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  Monomorph.typ_has_tvars T ? Symtab.insert_list (op =) x
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val add_schematic_consts_of =
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  Term.fold_aterms (fn Const (x as (s, _)) =>
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                       not (member (op =) atp_monomorph_bad_consts s)
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                       ? add_schematic_const x
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                      | _ => I)
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fun atp_schematic_consts_of t = add_schematic_consts_of t Symtab.empty
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(** Definitions and functions for FOL clauses and formulas for TPTP **)
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(** Isabelle arities **)
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type arity_atom = name * name * name list
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val type_class = the_single @{sort type}
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type arity_clause =
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  {name : string,
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   prem_atoms : arity_atom list,
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   concl_atom : arity_atom}
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fun add_prem_atom tvar =
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  fold (fn s => s <> type_class ? cons (`make_type_class s, `I tvar, []))
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(* Arity of type constructor "tcon :: (arg1, ..., argN) res" *)
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fun make_axiom_arity_clause (tcons, name, (cls, args)) =
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  let
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    val tvars = map (prefix tvar_prefix o string_of_int) (1 upto length args)
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    val tvars_srts = ListPair.zip (tvars, args)
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  in
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    {name = name,
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     prem_atoms = [] |> fold (uncurry add_prem_atom) tvars_srts,
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     concl_atom = (`make_type_class cls, `make_fixed_type_const tcons,
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                   tvars ~~ tvars)}
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  end
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fun arity_clause _ _ (_, []) = []
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  | arity_clause seen n (tcons, ("HOL.type", _) :: ars) =  (* ignore *)
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    arity_clause seen n (tcons, ars)
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  | arity_clause seen n (tcons, (ar as (class, _)) :: ars) =
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    if member (op =) seen class then
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      (* multiple arities for the same (tycon, class) pair *)
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      make_axiom_arity_clause (tcons,
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          lookup_const tcons ^ "___" ^ ascii_of class ^ "_" ^ string_of_int n,
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          ar) ::
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      arity_clause seen (n + 1) (tcons, ars)
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    else
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      make_axiom_arity_clause (tcons, lookup_const tcons ^ "___" ^
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                               ascii_of class, ar) ::
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      arity_clause (class :: seen) n (tcons, ars)
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fun multi_arity_clause [] = []
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  | multi_arity_clause ((tcons, ars) :: tc_arlists) =
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    arity_clause [] 1 (tcons, ars) @ multi_arity_clause tc_arlists
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(* Generate all pairs (tycon, class, sorts) such that tycon belongs to class in
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   theory thy provided its arguments have the corresponding sorts. *)
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fun type_class_pairs thy tycons classes =
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  let
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    val alg = Sign.classes_of thy
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    fun domain_sorts tycon = Sorts.mg_domain alg tycon o single
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    fun add_class tycon class =
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      cons (class, domain_sorts tycon class)
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      handle Sorts.CLASS_ERROR _ => I
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    fun try_classes tycon = (tycon, fold (add_class tycon) classes [])
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  in map try_classes tycons end
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(*Proving one (tycon, class) membership may require proving others, so iterate.*)
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fun iter_type_class_pairs _ _ [] = ([], [])
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  | iter_type_class_pairs thy tycons classes =
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      let
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        fun maybe_insert_class s =
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          (s <> type_class andalso not (member (op =) classes s))
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          ? insert (op =) s
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        val cpairs = type_class_pairs thy tycons classes
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        val newclasses =
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          [] |> fold (fold (fold (fold maybe_insert_class) o snd) o snd) cpairs
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        val (classes', cpairs') = iter_type_class_pairs thy tycons newclasses
43266
3baf384e2b99 minor optimization
blanchet
parents: 43265
diff changeset
   427
      in (classes' @ classes, union (op =) cpairs' cpairs) end
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   428
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   429
fun make_arity_clauses thy tycons =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   430
  iter_type_class_pairs thy tycons ##> multi_arity_clause
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   431
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   432
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   433
(** Isabelle class relations **)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   434
43086
blanchet
parents: 43085
diff changeset
   435
type class_rel_clause =
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   436
  {name : string,
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   437
   subclass : name,
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   438
   superclass : name}
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   439
43622
blanchet
parents: 43572
diff changeset
   440
(* Generate all pairs (sub, super) such that sub is a proper subclass of super
blanchet
parents: 43572
diff changeset
   441
   in theory "thy". *)
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   442
fun class_pairs _ [] _ = []
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   443
  | class_pairs thy subs supers =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   444
      let
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   445
        val class_less = Sorts.class_less (Sign.classes_of thy)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   446
        fun add_super sub super = class_less (sub, super) ? cons (sub, super)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   447
        fun add_supers sub = fold (add_super sub) supers
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   448
      in fold add_supers subs [] end
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   449
43622
blanchet
parents: 43572
diff changeset
   450
fun make_class_rel_clause (sub, super) =
blanchet
parents: 43572
diff changeset
   451
  {name = sub ^ "_" ^ super, subclass = `make_type_class sub,
43086
blanchet
parents: 43085
diff changeset
   452
   superclass = `make_type_class super}
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   453
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   454
fun make_class_rel_clauses thy subs supers =
43093
blanchet
parents: 43092
diff changeset
   455
  map make_class_rel_clause (class_pairs thy subs supers)
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   456
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   457
(* intermediate terms *)
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   458
datatype iterm =
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   459
  IConst of name * typ * typ list |
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   460
  IVar of name * typ |
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   461
  IApp of iterm * iterm |
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   462
  IAbs of (name * typ) * iterm
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   463
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   464
fun ityp_of (IConst (_, T, _)) = T
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   465
  | ityp_of (IVar (_, T)) = T
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   466
  | ityp_of (IApp (t1, _)) = snd (dest_funT (ityp_of t1))
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   467
  | ityp_of (IAbs ((_, T), tm)) = T --> ityp_of tm
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   468
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   469
(*gets the head of a combinator application, along with the list of arguments*)
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   470
fun strip_iterm_comb u =
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   471
  let
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   472
    fun stripc (IApp (t, u), ts) = stripc (t, u :: ts)
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   473
      | stripc x = x
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   474
  in stripc (u, []) end
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   475
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
   476
fun atomic_types_of T = fold_atyps (insert (op =)) T []
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   477
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   478
val tvar_a_str = "'a"
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   479
val tvar_a = TVar ((tvar_a_str, 0), HOLogic.typeS)
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   480
val tvar_a_name = (make_schematic_type_var (tvar_a_str, 0), tvar_a_str)
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   481
val itself_name = `make_fixed_type_const @{type_name itself}
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   482
val TYPE_name = `(make_fixed_const NONE) @{const_name TYPE}
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   483
val tvar_a_atype = AType (tvar_a_name, [])
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   484
val a_itself_atype = AType (itself_name, [tvar_a_atype])
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   485
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   486
fun new_skolem_const_name s num_T_args =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   487
  [new_skolem_const_prefix, s, string_of_int num_T_args]
46711
f745bcc4a1e5 more explicit Long_Name operations (NB: analyzing qualifiers is inherently fragile);
wenzelm
parents: 46643
diff changeset
   488
  |> Long_Name.implode
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   489
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   490
fun robust_const_type thy s =
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   491
  if s = app_op_name then
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   492
    Logic.varifyT_global @{typ "('a => 'b) => 'a => 'b"}
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
   493
  else if String.isPrefix lam_lifted_prefix s then
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   494
    Logic.varifyT_global @{typ "'a => 'b"}
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   495
  else
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   496
    (* Old Skolems throw a "TYPE" exception here, which will be caught. *)
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   497
    s |> Sign.the_const_type thy
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   498
46642
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
   499
val robust_const_ary =
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
   500
  let
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
   501
    fun ary (Type (@{type_name fun}, [_, T])) = 1 + ary T
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
   502
      | ary _ = 0
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
   503
  in ary oo robust_const_type end
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
   504
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   505
(* This function only makes sense if "T" is as general as possible. *)
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   506
fun robust_const_typargs thy (s, T) =
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   507
  if s = app_op_name then
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   508
    let val (T1, T2) = T |> domain_type |> dest_funT in [T1, T2] end
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   509
  else if String.isPrefix old_skolem_const_prefix s then
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   510
    [] |> Term.add_tvarsT T |> rev |> map TVar
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
   511
  else if String.isPrefix lam_lifted_prefix s then
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
   512
    if String.isPrefix lam_lifted_poly_prefix s then
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
   513
      let val (T1, T2) = T |> dest_funT in [T1, T2] end
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
   514
    else
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
   515
      []
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   516
  else
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   517
    (s, T) |> Sign.const_typargs thy
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   518
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   519
(* Converts an Isabelle/HOL term (with combinators) into an intermediate term.
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   520
   Also accumulates sort infomation. *)
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   521
fun iterm_from_term thy format bs (P $ Q) =
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   522
    let
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   523
      val (P', P_atomics_Ts) = iterm_from_term thy format bs P
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   524
      val (Q', Q_atomics_Ts) = iterm_from_term thy format bs Q
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   525
    in (IApp (P', Q'), union (op =) P_atomics_Ts Q_atomics_Ts) end
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   526
  | iterm_from_term thy format _ (Const (c, T)) =
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   527
    (IConst (`(make_fixed_const (SOME format)) c, T,
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   528
             robust_const_typargs thy (c, T)),
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
   529
     atomic_types_of T)
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   530
  | iterm_from_term _ _ _ (Free (s, T)) =
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   531
    (IConst (`make_fixed_var s, T, []), atomic_types_of T)
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   532
  | iterm_from_term _ format _ (Var (v as (s, _), T)) =
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   533
    (if String.isPrefix Meson_Clausify.new_skolem_var_prefix s then
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   534
       let
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   535
         val Ts = T |> strip_type |> swap |> op ::
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   536
         val s' = new_skolem_const_name s (length Ts)
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   537
       in IConst (`(make_fixed_const (SOME format)) s', T, Ts) end
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   538
     else
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
   539
       IVar ((make_schematic_var v, s), T), atomic_types_of T)
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   540
  | iterm_from_term _ _ bs (Bound j) =
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
   541
    nth bs j |> (fn (_, (name, T)) => (IConst (name, T, []), atomic_types_of T))
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   542
  | iterm_from_term thy format bs (Abs (s, T, t)) =
43678
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   543
    let
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   544
      fun vary s = s |> AList.defined (op =) bs s ? vary o Symbol.bump_string
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   545
      val s = vary s
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
   546
      val name = `make_bound_var s
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   547
      val (tm, atomic_Ts) = iterm_from_term thy format ((s, (name, T)) :: bs) t
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
   548
    in (IAbs ((name, T), tm), union (op =) atomic_Ts (atomic_types_of T)) end
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   549
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
   550
datatype scope = Global | Local | Assum | Chained
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
   551
datatype status = General | Induct | Intro | Spec_Intro | Elim | Simp | Spec_Eq
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
   552
type stature = scope * status
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   553
43624
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   554
datatype order = First_Order | Higher_Order
44494
a77901b3774e rationalized option names -- mono becomes raw_mono and mangled becomes mono
blanchet
parents: 44493
diff changeset
   555
datatype polymorphism = Polymorphic | Raw_Monomorphic | Mangled_Monomorphic
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
   556
datatype strictness = Strict | Non_Strict
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   557
datatype granularity = All_Vars | Positively_Naked_Vars | Ghost_Type_Arg_Vars
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   558
datatype type_level =
44397
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
   559
  All_Types |
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
   560
  Noninf_Nonmono_Types of strictness * granularity |
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   561
  Fin_Nonmono_Types of granularity |
44397
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
   562
  Const_Arg_Types |
43362
8d3a5b7b9a00 name tuning
blanchet
parents: 43361
diff changeset
   563
  No_Types
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   564
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   565
datatype type_enc =
44591
0b107d11f634 extended simple types with polymorphism -- the implementation still needs some work though
blanchet
parents: 44589
diff changeset
   566
  Simple_Types of order * polymorphism * type_level |
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   567
  Guards of polymorphism * type_level |
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   568
  Tags of polymorphism * type_level
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   569
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   570
fun is_type_enc_higher_order (Simple_Types (Higher_Order, _, _)) = true
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   571
  | is_type_enc_higher_order _ = false
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   572
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   573
fun polymorphism_of_type_enc (Simple_Types (_, poly, _)) = poly
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   574
  | polymorphism_of_type_enc (Guards (poly, _)) = poly
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   575
  | polymorphism_of_type_enc (Tags (poly, _)) = poly
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   576
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   577
fun level_of_type_enc (Simple_Types (_, _, level)) = level
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   578
  | level_of_type_enc (Guards (_, level)) = level
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   579
  | level_of_type_enc (Tags (_, level)) = level
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   580
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   581
fun granularity_of_type_level (Noninf_Nonmono_Types (_, grain)) = grain
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   582
  | granularity_of_type_level (Fin_Nonmono_Types grain) = grain
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   583
  | granularity_of_type_level _ = All_Vars
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   584
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   585
fun is_type_level_quasi_sound All_Types = true
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   586
  | is_type_level_quasi_sound (Noninf_Nonmono_Types _) = true
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   587
  | is_type_level_quasi_sound _ = false
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   588
val is_type_enc_quasi_sound = is_type_level_quasi_sound o level_of_type_enc
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   589
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   590
fun is_type_level_fairly_sound (Fin_Nonmono_Types _) = true
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   591
  | is_type_level_fairly_sound level = is_type_level_quasi_sound level
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   592
val is_type_enc_fairly_sound = is_type_level_fairly_sound o level_of_type_enc
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   593
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   594
fun is_type_level_monotonicity_based (Noninf_Nonmono_Types _) = true
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   595
  | is_type_level_monotonicity_based (Fin_Nonmono_Types _) = true
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   596
  | is_type_level_monotonicity_based _ = false
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   597
44785
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   598
(* "_query", "_bang", and "_at" are for the ASCII-challenged Metis and
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   599
   Mirabelle. *)
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   600
val queries = ["?", "_query"]
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   601
val bangs = ["!", "_bang"]
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   602
val ats = ["@", "_at"]
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   603
42689
e38590764c34 versions of ! and ? for the ASCII-challenged Mirabelle
blanchet
parents: 42688
diff changeset
   604
fun try_unsuffixes ss s =
e38590764c34 versions of ! and ? for the ASCII-challenged Mirabelle
blanchet
parents: 42688
diff changeset
   605
  fold (fn s' => fn NONE => try (unsuffix s') s | some => some) ss NONE
e38590764c34 versions of ! and ? for the ASCII-challenged Mirabelle
blanchet
parents: 42688
diff changeset
   606
44785
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   607
fun try_nonmono constr suffixes fallback s =
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   608
  case try_unsuffixes suffixes s of
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   609
    SOME s =>
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   610
    (case try_unsuffixes suffixes s of
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   611
       SOME s => (constr Positively_Naked_Vars, s)
44785
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   612
     | NONE =>
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   613
       case try_unsuffixes ats s of
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   614
         SOME s => (constr Ghost_Type_Arg_Vars, s)
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   615
       | NONE => (constr All_Vars, s))
44785
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   616
  | NONE => fallback s
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   617
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
   618
fun type_enc_from_string strictness s =
42722
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   619
  (case try (unprefix "poly_") s of
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   620
     SOME s => (SOME Polymorphic, s)
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   621
   | NONE =>
44494
a77901b3774e rationalized option names -- mono becomes raw_mono and mangled becomes mono
blanchet
parents: 44493
diff changeset
   622
     case try (unprefix "raw_mono_") s of
a77901b3774e rationalized option names -- mono becomes raw_mono and mangled becomes mono
blanchet
parents: 44493
diff changeset
   623
       SOME s => (SOME Raw_Monomorphic, s)
42722
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   624
     | NONE =>
44494
a77901b3774e rationalized option names -- mono becomes raw_mono and mangled becomes mono
blanchet
parents: 44493
diff changeset
   625
       case try (unprefix "mono_") s of
42722
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   626
         SOME s => (SOME Mangled_Monomorphic, s)
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   627
       | NONE => (NONE, s))
44785
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   628
  ||> (pair All_Types
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   629
       |> try_nonmono Fin_Nonmono_Types bangs
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
   630
       |> try_nonmono (curry Noninf_Nonmono_Types strictness) queries)
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   631
  |> (fn (poly, (level, core)) =>
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   632
         case (core, (poly, level)) of
46435
e9c90516bc0d renamed type encoding
blanchet
parents: 46422
diff changeset
   633
           ("native", (SOME poly, _)) =>
44742
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   634
           (case (poly, level) of
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   635
              (Polymorphic, All_Types) =>
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   636
              Simple_Types (First_Order, Polymorphic, All_Types)
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   637
            | (Mangled_Monomorphic, _) =>
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   638
              if granularity_of_type_level level = All_Vars then
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   639
                Simple_Types (First_Order, Mangled_Monomorphic, level)
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   640
              else
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   641
                raise Same.SAME
44742
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   642
            | _ => raise Same.SAME)
46435
e9c90516bc0d renamed type encoding
blanchet
parents: 46422
diff changeset
   643
         | ("native_higher", (SOME poly, _)) =>
44591
0b107d11f634 extended simple types with polymorphism -- the implementation still needs some work though
blanchet
parents: 44589
diff changeset
   644
           (case (poly, level) of
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   645
              (Polymorphic, All_Types) =>
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   646
              Simple_Types (Higher_Order, Polymorphic, All_Types)
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   647
            | (_, Noninf_Nonmono_Types _) => raise Same.SAME
44742
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   648
            | (Mangled_Monomorphic, _) =>
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   649
              if granularity_of_type_level level = All_Vars then
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   650
                Simple_Types (Higher_Order, Mangled_Monomorphic, level)
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   651
              else
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   652
                raise Same.SAME
44742
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   653
            | _ => raise Same.SAME)
44810
c1c05a578c1a stricted type encoding parsing
blanchet
parents: 44786
diff changeset
   654
         | ("guards", (SOME poly, _)) =>
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   655
           if poly = Mangled_Monomorphic andalso
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   656
              granularity_of_type_level level = Ghost_Type_Arg_Vars then
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   657
             raise Same.SAME
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   658
           else
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   659
             Guards (poly, level)
44810
c1c05a578c1a stricted type encoding parsing
blanchet
parents: 44786
diff changeset
   660
         | ("tags", (SOME poly, _)) =>
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   661
           if granularity_of_type_level level = Ghost_Type_Arg_Vars then
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   662
             raise Same.SAME
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   663
           else
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   664
             Tags (poly, level)
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   665
         | ("args", (SOME poly, All_Types (* naja *))) =>
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   666
           Guards (poly, Const_Arg_Types)
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   667
         | ("erased", (NONE, All_Types (* naja *))) =>
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   668
           Guards (Polymorphic, No_Types)
42753
c9552e617acc drop some type arguments to constants in unsound type systems + remove a few type systems that make no sense from the circulation
blanchet
parents: 42750
diff changeset
   669
         | _ => raise Same.SAME)
44785
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   670
  handle Same.SAME => error ("Unknown type encoding: " ^ quote s ^ ".")
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   671
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   672
fun adjust_type_enc (THF (TPTP_Monomorphic, _, _))
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   673
                    (Simple_Types (order, _, level)) =
44591
0b107d11f634 extended simple types with polymorphism -- the implementation still needs some work though
blanchet
parents: 44589
diff changeset
   674
    Simple_Types (order, Mangled_Monomorphic, level)
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   675
  | adjust_type_enc (THF _) type_enc = type_enc
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   676
  | adjust_type_enc (TFF (TPTP_Monomorphic, _)) (Simple_Types (_, _, level)) =
44591
0b107d11f634 extended simple types with polymorphism -- the implementation still needs some work though
blanchet
parents: 44589
diff changeset
   677
    Simple_Types (First_Order, Mangled_Monomorphic, level)
45303
bd03b08161ac added DFG unsorted support (like in the old days)
blanchet
parents: 45301
diff changeset
   678
  | adjust_type_enc (DFG DFG_Sorted) (Simple_Types (_, _, level)) =
45301
866b075aa99b added sorted DFG output for coming version of SPASS
blanchet
parents: 45299
diff changeset
   679
    Simple_Types (First_Order, Mangled_Monomorphic, level)
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   680
  | adjust_type_enc (TFF _) (Simple_Types (_, poly, level)) =
44591
0b107d11f634 extended simple types with polymorphism -- the implementation still needs some work though
blanchet
parents: 44589
diff changeset
   681
    Simple_Types (First_Order, poly, level)
0b107d11f634 extended simple types with polymorphism -- the implementation still needs some work though
blanchet
parents: 44589
diff changeset
   682
  | adjust_type_enc format (Simple_Types (_, poly, level)) =
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   683
    adjust_type_enc format (Guards (poly, level))
44416
cabd06b69c18 added formats to the slice and use TFF for remote Vampire
blanchet
parents: 44410
diff changeset
   684
  | adjust_type_enc CNF_UEQ (type_enc as Guards stuff) =
cabd06b69c18 added formats to the slice and use TFF for remote Vampire
blanchet
parents: 44410
diff changeset
   685
    (if is_type_enc_fairly_sound type_enc then Tags else Guards) stuff
cabd06b69c18 added formats to the slice and use TFF for remote Vampire
blanchet
parents: 44410
diff changeset
   686
  | adjust_type_enc _ type_enc = type_enc
43101
1d46d85cd78b make "prepare_atp_problem" more robust w.r.t. choice of type system
blanchet
parents: 43098
diff changeset
   687
46818
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   688
fun is_fol_term t =
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   689
  case t of
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   690
    @{const Not} $ t1 => is_fol_term t1
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   691
  | Const (@{const_name All}, _) $ Abs (_, _, t') => is_fol_term t'
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   692
  | Const (@{const_name All}, _) $ t1 => is_fol_term t1
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   693
  | Const (@{const_name Ex}, _) $ Abs (_, _, t') => is_fol_term t'
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   694
  | Const (@{const_name Ex}, _) $ t1 => is_fol_term t1
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   695
  | @{const HOL.conj} $ t1 $ t2 => is_fol_term t1 andalso is_fol_term t2
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   696
  | @{const HOL.disj} $ t1 $ t2 => is_fol_term t1 andalso is_fol_term t2
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   697
  | @{const HOL.implies} $ t1 $ t2 => is_fol_term t1 andalso is_fol_term t2
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   698
  | Const (@{const_name HOL.eq}, Type (_, [@{typ bool}, _])) $ t1 $ t2 =>
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   699
    is_fol_term t1 andalso is_fol_term t2
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   700
  | _ => not (exists_subterm (fn Abs _ => true | _ => false) t)
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   701
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   702
fun simple_translate_lambdas do_lambdas ctxt t =
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   703
  if is_fol_term t then
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   704
    t
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   705
  else
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   706
    let
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   707
      fun trans Ts t =
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   708
        case t of
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   709
          @{const Not} $ t1 => @{const Not} $ trans Ts t1
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   710
        | (t0 as Const (@{const_name All}, _)) $ Abs (s, T, t') =>
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   711
          t0 $ Abs (s, T, trans (T :: Ts) t')
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   712
        | (t0 as Const (@{const_name All}, _)) $ t1 =>
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   713
          trans Ts (t0 $ eta_expand Ts t1 1)
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   714
        | (t0 as Const (@{const_name Ex}, _)) $ Abs (s, T, t') =>
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   715
          t0 $ Abs (s, T, trans (T :: Ts) t')
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   716
        | (t0 as Const (@{const_name Ex}, _)) $ t1 =>
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   717
          trans Ts (t0 $ eta_expand Ts t1 1)
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   718
        | (t0 as @{const HOL.conj}) $ t1 $ t2 =>
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   719
          t0 $ trans Ts t1 $ trans Ts t2
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   720
        | (t0 as @{const HOL.disj}) $ t1 $ t2 =>
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   721
          t0 $ trans Ts t1 $ trans Ts t2
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   722
        | (t0 as @{const HOL.implies}) $ t1 $ t2 =>
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   723
          t0 $ trans Ts t1 $ trans Ts t2
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   724
        | (t0 as Const (@{const_name HOL.eq}, Type (_, [@{typ bool}, _])))
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   725
            $ t1 $ t2 =>
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   726
          t0 $ trans Ts t1 $ trans Ts t2
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   727
        | _ =>
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   728
          if not (exists_subterm (fn Abs _ => true | _ => false) t) then t
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   729
          else t |> Envir.eta_contract |> do_lambdas ctxt Ts
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   730
      val (t, ctxt') = Variable.import_terms true [t] ctxt |>> the_single
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   731
    in t |> trans [] |> singleton (Variable.export_terms ctxt' ctxt) end
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   732
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   733
fun do_cheaply_conceal_lambdas Ts (t1 $ t2) =
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   734
    do_cheaply_conceal_lambdas Ts t1
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   735
    $ do_cheaply_conceal_lambdas Ts t2
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   736
  | do_cheaply_conceal_lambdas Ts (Abs (_, T, t)) =
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   737
    Const (lam_lifted_poly_prefix ^ serial_string (),
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   738
           T --> fastype_of1 (T :: Ts, t))
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   739
  | do_cheaply_conceal_lambdas _ t = t
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   740
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   741
fun concealed_bound_name j = atp_weak_prefix ^ string_of_int j
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   742
fun conceal_bounds Ts t =
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   743
  subst_bounds (map (Free o apfst concealed_bound_name)
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   744
                    (0 upto length Ts - 1 ~~ Ts), t)
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   745
fun reveal_bounds Ts =
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   746
  subst_atomic (map (fn (j, T) => (Free (concealed_bound_name j, T), Bound j))
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   747
                    (0 upto length Ts - 1 ~~ Ts))
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   748
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   749
fun do_introduce_combinators ctxt Ts t =
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   750
  let val thy = Proof_Context.theory_of ctxt in
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   751
    t |> conceal_bounds Ts
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   752
      |> cterm_of thy
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   753
      |> Meson_Clausify.introduce_combinators_in_cterm
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   754
      |> prop_of |> Logic.dest_equals |> snd
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   755
      |> reveal_bounds Ts
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   756
  end
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   757
  (* A type variable of sort "{}" will make abstraction fail. *)
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   758
  handle THM _ => t |> do_cheaply_conceal_lambdas Ts
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   759
val introduce_combinators = simple_translate_lambdas do_introduce_combinators
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   760
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   761
fun constify_lifted (t $ u) = constify_lifted t $ constify_lifted u
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   762
  | constify_lifted (Abs (s, T, t)) = Abs (s, T, constify_lifted t)
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   763
  | constify_lifted (Free (x as (s, _))) =
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
   764
    (if String.isPrefix lam_lifted_prefix s then Const else Free) x
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   765
  | constify_lifted t = t
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   766
46375
d724066ff3d0 reverted e2b1a86d59fc -- broke Metis's lambda-lifting
blanchet
parents: 46371
diff changeset
   767
(* Requires bound variables not to clash with any schematic variables (as should
d724066ff3d0 reverted e2b1a86d59fc -- broke Metis's lambda-lifting
blanchet
parents: 46371
diff changeset
   768
   be the case right after lambda-lifting). *)
46385
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   769
fun open_form unprefix (t as Const (@{const_name All}, _) $ Abs (s, T, t')) =
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   770
    (case try unprefix s of
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   771
       SOME s =>
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   772
       let
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   773
         val names = Name.make_context (map fst (Term.add_var_names t' []))
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   774
         val (s, _) = Name.variant s names
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   775
       in open_form unprefix (subst_bound (Var ((s, 0), T), t')) end
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   776
     | NONE => t)
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   777
  | open_form _ t = t
46375
d724066ff3d0 reverted e2b1a86d59fc -- broke Metis's lambda-lifting
blanchet
parents: 46371
diff changeset
   778
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
   779
fun lift_lams_part_1 ctxt type_enc =
45568
211a6e6cbc04 move eta-contraction to before translation to Metis, to ensure everything stays in sync
blanchet
parents: 45565
diff changeset
   780
  map close_form #> rpair ctxt
44088
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   781
  #-> Lambda_Lifting.lift_lambdas
45564
2231a151db59 protect prefix against variant mutations
blanchet
parents: 45554
diff changeset
   782
          (SOME ((if polymorphism_of_type_enc type_enc = Polymorphic then
2231a151db59 protect prefix against variant mutations
blanchet
parents: 45554
diff changeset
   783
                    lam_lifted_poly_prefix
2231a151db59 protect prefix against variant mutations
blanchet
parents: 45554
diff changeset
   784
                  else
2231a151db59 protect prefix against variant mutations
blanchet
parents: 45554
diff changeset
   785
                    lam_lifted_mono_prefix) ^ "_a"))
44088
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   786
          Lambda_Lifting.is_quantifier
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
   787
  #> fst
46818
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   788
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   789
fun lift_lams_part_2 ctxt (facts, lifted) =
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   790
  (facts, lifted)
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   791
  (* Lambda-lifting sometimes leaves some lambdas around; we need some way to get rid
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   792
     of them *)
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   793
  |> pairself (map (introduce_combinators ctxt))
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   794
  |> pairself (map constify_lifted)
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   795
  |>> map (open_form (unprefix close_form_prefix))
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   796
  ||> map (open_form I)
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   797
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
   798
fun lift_lams ctxt = lift_lams_part_2 ctxt oo lift_lams_part_1 ctxt
44088
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   799
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   800
fun intentionalize_def (Const (@{const_name All}, _) $ Abs (_, _, t)) =
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   801
    intentionalize_def t
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   802
  | intentionalize_def (Const (@{const_name HOL.eq}, _) $ t $ u) =
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   803
    let
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   804
      fun lam T t = Abs (Name.uu, T, t)
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   805
      val (head, args) = strip_comb t ||> rev
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   806
      val head_T = fastype_of head
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   807
      val n = length args
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   808
      val arg_Ts = head_T |> binder_types |> take n |> rev
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   809
      val u = u |> subst_atomic (args ~~ map Bound (0 upto n - 1))
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   810
    in HOLogic.eq_const head_T $ head $ fold lam arg_Ts u end
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   811
  | intentionalize_def t = t
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   812
40114
blanchet
parents: 40069
diff changeset
   813
type translated_formula =
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   814
  {name : string,
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
   815
   stature : stature,
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   816
   kind : formula_kind,
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   817
   iformula : (name, typ, iterm) formula,
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   818
   atomic_types : typ list}
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   819
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
   820
fun update_iformula f ({name, stature, kind, iformula, atomic_types}
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   821
                       : translated_formula) =
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
   822
  {name = name, stature = stature, kind = kind, iformula = f iformula,
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   823
   atomic_types = atomic_types} : translated_formula
42542
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   824
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   825
fun fact_lift f ({iformula, ...} : translated_formula) = f iformula
42558
3d9930cb6770 cleaned up "explicit_apply" so that it shares most of its code path with the default mode of operation
blanchet
parents: 42557
diff changeset
   826
43064
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
   827
fun insert_type ctxt get_T x xs =
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
   828
  let val T = get_T x in
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
   829
    if exists (type_instance ctxt T o get_T) xs then xs
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
   830
    else x :: filter_out (type_generalization ctxt T o get_T) xs
43064
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
   831
  end
42677
25496cd3c199 monotonic type inference in ATP Sledgehammer problems -- based on Claessen & al.'s CADE 2011 paper, Sect. 2.3.
blanchet
parents: 42675
diff changeset
   832
42753
c9552e617acc drop some type arguments to constants in unsound type systems + remove a few type systems that make no sense from the circulation
blanchet
parents: 42750
diff changeset
   833
(* The Booleans indicate whether all type arguments should be kept. *)
c9552e617acc drop some type arguments to constants in unsound type systems + remove a few type systems that make no sense from the circulation
blanchet
parents: 42750
diff changeset
   834
datatype type_arg_policy =
45937
blanchet
parents: 45920
diff changeset
   835
  Explicit_Type_Args of bool (* infer_from_term_args *) |
44771
0e5d4388bbac make mangling sound w.r.t. type arguments
blanchet
parents: 44770
diff changeset
   836
  Mangled_Type_Args |
42753
c9552e617acc drop some type arguments to constants in unsound type systems + remove a few type systems that make no sense from the circulation
blanchet
parents: 42750
diff changeset
   837
  No_Type_Args
41136
30bedf58b177 implemented new type system encoding "overload_args", which is more lightweight than "const_args" (the unsound default) and hopefully almost as sound
blanchet
parents: 41134
diff changeset
   838
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
   839
fun type_arg_policy monom_constrs type_enc s =
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   840
  let val poly = polymorphism_of_type_enc type_enc in
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
   841
    if s = type_tag_name then
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   842
      if poly = Mangled_Monomorphic then Mangled_Type_Args
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   843
      else Explicit_Type_Args false
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
   844
    else case type_enc of
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   845
      Simple_Types (_, Polymorphic, _) => Explicit_Type_Args false
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   846
    | Tags (_, All_Types) => No_Type_Args
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
   847
    | _ =>
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
   848
      let val level = level_of_type_enc type_enc in
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
   849
        if level = No_Types orelse s = @{const_name HOL.eq} orelse
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
   850
           (s = app_op_name andalso level = Const_Arg_Types) then
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
   851
          No_Type_Args
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   852
        else if poly = Mangled_Monomorphic then
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
   853
          Mangled_Type_Args
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
   854
        else if member (op =) monom_constrs s andalso
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
   855
                granularity_of_type_level level = Positively_Naked_Vars then
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
   856
          No_Type_Args
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
   857
        else
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   858
          Explicit_Type_Args
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   859
              (level = All_Types orelse
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   860
               granularity_of_type_level level = Ghost_Type_Arg_Vars)
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
   861
      end
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
   862
  end
42227
662b50b7126f if "monomorphize" is enabled, mangle the type information in the names by default
blanchet
parents: 42180
diff changeset
   863
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   864
(* Make atoms for sorted type variables. *)
43263
blanchet
parents: 43259
diff changeset
   865
fun generic_add_sorts_on_type (_, []) = I
blanchet
parents: 43259
diff changeset
   866
  | generic_add_sorts_on_type ((x, i), s :: ss) =
blanchet
parents: 43259
diff changeset
   867
    generic_add_sorts_on_type ((x, i), ss)
blanchet
parents: 43259
diff changeset
   868
    #> (if s = the_single @{sort HOL.type} then
43093
blanchet
parents: 43092
diff changeset
   869
          I
blanchet
parents: 43092
diff changeset
   870
        else if i = ~1 then
44623
blanchet
parents: 44622
diff changeset
   871
          insert (op =) (`make_type_class s, `make_fixed_type_var x)
43093
blanchet
parents: 43092
diff changeset
   872
        else
44623
blanchet
parents: 44622
diff changeset
   873
          insert (op =) (`make_type_class s,
blanchet
parents: 44622
diff changeset
   874
                         (make_schematic_type_var (x, i), x)))
43263
blanchet
parents: 43259
diff changeset
   875
fun add_sorts_on_tfree (TFree (s, S)) = generic_add_sorts_on_type ((s, ~1), S)
blanchet
parents: 43259
diff changeset
   876
  | add_sorts_on_tfree _ = I
blanchet
parents: 43259
diff changeset
   877
fun add_sorts_on_tvar (TVar z) = generic_add_sorts_on_type z
blanchet
parents: 43259
diff changeset
   878
  | add_sorts_on_tvar _ = I
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   879
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   880
fun type_class_formula type_enc class arg =
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   881
  AAtom (ATerm (class, arg ::
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   882
      (case type_enc of
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   883
         Simple_Types (First_Order, Polymorphic, _) =>
45301
866b075aa99b added sorted DFG output for coming version of SPASS
blanchet
parents: 45299
diff changeset
   884
         if avoid_first_order_ghost_type_vars then [ATerm (TYPE_name, [arg])]
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   885
         else []
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   886
       | _ => [])))
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   887
fun formulas_for_types type_enc add_sorts_on_typ Ts =
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   888
  [] |> level_of_type_enc type_enc <> No_Types ? fold add_sorts_on_typ Ts
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   889
     |> map (fn (class, name) =>
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   890
                type_class_formula type_enc class (ATerm (name, [])))
41137
8b634031b2a5 implemented "no_types" encoding, which is too unsound to be useful but can come in handy for evaluations
blanchet
parents: 41136
diff changeset
   891
42534
46e690db16b8 fake type declarations for full-type args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents: 42533
diff changeset
   892
fun mk_aconns c phis =
46e690db16b8 fake type declarations for full-type args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents: 42533
diff changeset
   893
  let val (phis', phi') = split_last phis in
46e690db16b8 fake type declarations for full-type args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents: 42533
diff changeset
   894
    fold_rev (mk_aconn c) phis' phi'
46e690db16b8 fake type declarations for full-type args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents: 42533
diff changeset
   895
  end
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   896
fun mk_ahorn [] phi = phi
42534
46e690db16b8 fake type declarations for full-type args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents: 42533
diff changeset
   897
  | mk_ahorn phis psi = AConn (AImplies, [mk_aconns AAnd phis, psi])
42522
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   898
fun mk_aquant _ [] phi = phi
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   899
  | mk_aquant q xs (phi as AQuant (q', xs', phi')) =
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   900
    if q = q' then AQuant (q, xs @ xs', phi') else AQuant (q, xs, phi)
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   901
  | mk_aquant q xs phi = AQuant (q, xs, phi)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   902
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   903
fun close_universally add_term_vars phi =
41145
a5ee3b8e5a90 improve partially tagged encoding by adding a helper fact that coalesces consecutive "ti" tags
blanchet
parents: 41140
diff changeset
   904
  let
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   905
    fun add_formula_vars bounds (AQuant (_, xs, phi)) =
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   906
        add_formula_vars (map fst xs @ bounds) phi
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   907
      | add_formula_vars bounds (AConn (_, phis)) =
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   908
        fold (add_formula_vars bounds) phis
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   909
      | add_formula_vars bounds (AAtom tm) = add_term_vars bounds tm
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   910
  in mk_aquant AForall (add_formula_vars [] phi []) phi end
42522
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   911
45377
blanchet
parents: 45364
diff changeset
   912
fun add_term_vars bounds (ATerm (name as (s, _), tms)) =
blanchet
parents: 45364
diff changeset
   913
    (if is_tptp_variable s andalso
blanchet
parents: 45364
diff changeset
   914
        not (String.isPrefix tvar_prefix s) andalso
blanchet
parents: 45364
diff changeset
   915
        not (member (op =) bounds name) then
blanchet
parents: 45364
diff changeset
   916
       insert (op =) (name, NONE)
blanchet
parents: 45364
diff changeset
   917
     else
blanchet
parents: 45364
diff changeset
   918
       I)
blanchet
parents: 45364
diff changeset
   919
    #> fold (add_term_vars bounds) tms
blanchet
parents: 45364
diff changeset
   920
  | add_term_vars bounds (AAbs ((name, _), tm)) =
blanchet
parents: 45364
diff changeset
   921
    add_term_vars (name :: bounds) tm
45401
36478a5f6104 made SML/NJ happy
blanchet
parents: 45377
diff changeset
   922
fun close_formula_universally phi = close_universally add_term_vars phi
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   923
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   924
fun add_iterm_vars bounds (IApp (tm1, tm2)) =
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   925
    fold (add_iterm_vars bounds) [tm1, tm2]
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   926
  | add_iterm_vars _ (IConst _) = I
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   927
  | add_iterm_vars bounds (IVar (name, T)) =
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   928
    not (member (op =) bounds name) ? insert (op =) (name, SOME T)
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   929
  | add_iterm_vars bounds (IAbs (_, tm)) = add_iterm_vars bounds tm
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   930
fun close_iformula_universally phi = close_universally add_iterm_vars phi
41145
a5ee3b8e5a90 improve partially tagged encoding by adding a helper fact that coalesces consecutive "ti" tags
blanchet
parents: 41140
diff changeset
   931
46338
b02ff6b17599 better handling of individual type for DFG format (SPASS)
blanchet
parents: 46320
diff changeset
   932
val fused_infinite_type_name = "ATP.fused_inf" (* shouldn't clash *)
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   933
val fused_infinite_type = Type (fused_infinite_type_name, [])
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   934
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   935
fun tvar_name (x as (s, _)) = (make_schematic_type_var x, s)
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   936
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   937
fun ho_term_from_typ format type_enc =
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   938
  let
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   939
    fun term (Type (s, Ts)) =
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   940
      ATerm (case (is_type_enc_higher_order type_enc, s) of
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   941
               (true, @{type_name bool}) => `I tptp_bool_type
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   942
             | (true, @{type_name fun}) => `I tptp_fun_type
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   943
             | _ => if s = fused_infinite_type_name andalso
44235
85e9dad3c187 distinguish THF syntax with and without choice (Satallax vs. LEO-II)
blanchet
parents: 44121
diff changeset
   944
                       is_format_typed format then
43178
b5862142d378 use "" type only in THF and TFF -- might cause strange failures if used in FOF or CNF, depending on how liberal the prover is
blanchet
parents: 43175
diff changeset
   945
                      `I tptp_individual_type
b5862142d378 use "" type only in THF and TFF -- might cause strange failures if used in FOF or CNF, depending on how liberal the prover is
blanchet
parents: 43175
diff changeset
   946
                    else
b5862142d378 use "" type only in THF and TFF -- might cause strange failures if used in FOF or CNF, depending on how liberal the prover is
blanchet
parents: 43175
diff changeset
   947
                      `make_fixed_type_const s,
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   948
             map term Ts)
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   949
    | term (TFree (s, _)) = ATerm (`make_fixed_type_var s, [])
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   950
    | term (TVar (x, _)) = ATerm (tvar_name x, [])
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   951
  in term end
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   952
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   953
fun ho_term_for_type_arg format type_enc T =
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   954
  if T = dummyT then NONE else SOME (ho_term_from_typ format type_enc T)
43401
e93dfcb53535 fixed soundness bug made more visible by previous change
blanchet
parents: 43399
diff changeset
   955
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   956
(* This shouldn't clash with anything else. *)
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
   957
val uncurried_alias_sep = "\000"
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   958
val mangled_type_sep = "\001"
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   959
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
   960
val ascii_of_uncurried_alias_sep = ascii_of uncurried_alias_sep
42542
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   961
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   962
fun generic_mangled_type_name f (ATerm (name, [])) = f name
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   963
  | generic_mangled_type_name f (ATerm (name, tys)) =
42761
8ea9c6fa8b53 fixed several bugs in Isar proof reconstruction, in particular w.r.t. mangled types and hAPP
blanchet
parents: 42755
diff changeset
   964
    f name ^ "(" ^ space_implode "," (map (generic_mangled_type_name f) tys)
8ea9c6fa8b53 fixed several bugs in Isar proof reconstruction, in particular w.r.t. mangled types and hAPP
blanchet
parents: 42755
diff changeset
   965
    ^ ")"
43692
264881a20f50 make SML/NJ happy + tuning
blanchet
parents: 43678
diff changeset
   966
  | generic_mangled_type_name _ _ = raise Fail "unexpected type abstraction"
42542
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   967
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
   968
fun mangled_type format type_enc =
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
   969
  generic_mangled_type_name fst o ho_term_from_typ format type_enc
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
   970
46435
e9c90516bc0d renamed type encoding
blanchet
parents: 46422
diff changeset
   971
fun make_native_type s =
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   972
  if s = tptp_bool_type orelse s = tptp_fun_type orelse
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   973
     s = tptp_individual_type then
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   974
    s
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   975
  else
46435
e9c90516bc0d renamed type encoding
blanchet
parents: 46422
diff changeset
   976
    native_type_prefix ^ ascii_of s
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   977
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   978
fun ho_type_from_ho_term type_enc pred_sym ary =
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   979
  let
44593
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
   980
    fun to_mangled_atype ty =
46435
e9c90516bc0d renamed type encoding
blanchet
parents: 46422
diff changeset
   981
      AType ((make_native_type (generic_mangled_type_name fst ty),
44593
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
   982
              generic_mangled_type_name snd ty), [])
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
   983
    fun to_poly_atype (ATerm (name, tys)) = AType (name, map to_poly_atype tys)
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
   984
      | to_poly_atype _ = raise Fail "unexpected type abstraction"
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
   985
    val to_atype =
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
   986
      if polymorphism_of_type_enc type_enc = Polymorphic then to_poly_atype
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
   987
      else to_mangled_atype
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   988
    fun to_afun f1 f2 tys = AFun (f1 (hd tys), f2 (nth tys 1))
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
   989
    fun to_fo 0 ty = if pred_sym then bool_atype else to_atype ty
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   990
      | to_fo ary (ATerm (_, tys)) = to_afun to_atype (to_fo (ary - 1)) tys
43692
264881a20f50 make SML/NJ happy + tuning
blanchet
parents: 43678
diff changeset
   991
      | to_fo _ _ = raise Fail "unexpected type abstraction"
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   992
    fun to_ho (ty as ATerm ((s, _), tys)) =
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   993
        if s = tptp_fun_type then to_afun to_ho to_ho tys else to_atype ty
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   994
      | to_ho _ = raise Fail "unexpected type abstraction"
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   995
  in if is_type_enc_higher_order type_enc then to_ho else to_fo ary end
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   996
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
   997
fun ho_type_from_typ format type_enc pred_sym ary =
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   998
  ho_type_from_ho_term type_enc pred_sym ary
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   999
  o ho_term_from_typ format type_enc
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
  1000
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  1001
fun aliased_uncurried ary (s, s') =
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  1002
  (s ^ ascii_of_uncurried_alias_sep ^ string_of_int ary, s' ^ string_of_int ary)
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  1003
fun unaliased_uncurried (s, s') =
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  1004
  case space_explode uncurried_alias_sep s of
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1005
    [_] => (s, s')
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1006
  | [s1, s2] => (s1, unsuffix s2 s')
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1007
  | _ => raise Fail "ill-formed explicit application alias"
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1008
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1009
fun raw_mangled_const_name type_name ty_args (s, s') =
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
  1010
  let
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
  1011
    fun type_suffix f g =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1012
      fold_rev (curry (op ^) o g o prefix mangled_type_sep o type_name f)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1013
               ty_args ""
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
  1014
  in (s ^ type_suffix fst ascii_of, s' ^ type_suffix snd I) end
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1015
fun mangled_const_name format type_enc =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1016
  map_filter (ho_term_for_type_arg format type_enc)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1017
  #> raw_mangled_const_name generic_mangled_type_name
42542
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1018
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1019
val parse_mangled_ident =
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1020
  Scan.many1 (not o member (op =) ["(", ")", ","]) >> implode
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1021
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1022
fun parse_mangled_type x =
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1023
  (parse_mangled_ident
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1024
   -- Scan.optional ($$ "(" |-- Scan.optional parse_mangled_types [] --| $$ ")")
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1025
                    [] >> ATerm) x
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1026
and parse_mangled_types x =
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1027
  (parse_mangled_type ::: Scan.repeat ($$ "," |-- parse_mangled_type)) x
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1028
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1029
fun unmangled_type s =
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1030
  s |> suffix ")" |> raw_explode
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1031
    |> Scan.finite Symbol.stopper
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1032
           (Scan.error (!! (fn _ => raise Fail ("unrecognized mangled type " ^
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1033
                                                quote s)) parse_mangled_type))
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1034
    |> fst
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1035
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1036
fun unmangled_const_name s =
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  1037
  (s, s) |> unaliased_uncurried |> fst |> space_explode mangled_type_sep
42542
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1038
fun unmangled_const s =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1039
  let val ss = unmangled_const_name s in
42542
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1040
    (hd ss, map unmangled_type (tl ss))
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1041
  end
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1042
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1043
fun introduce_proxies_in_iterm type_enc =
42568
7b9801a34836 no needless "fequal" proxies if "explicit_apply" is set + always have readable names
blanchet
parents: 42566
diff changeset
  1044
  let
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1045
    fun tweak_ho_quant ho_quant T [IAbs _] = IConst (`I ho_quant, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1046
      | tweak_ho_quant ho_quant (T as Type (_, [p_T as Type (_, [x_T, _]), _]))
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1047
                       _ =
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1048
        (* Eta-expand "!!" and "??", to work around LEO-II 1.2.8 parser
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1049
           limitation. This works in conjuction with special code in
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1050
           "ATP_Problem" that uses the syntactic sugar "!" and "?" whenever
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1051
           possible. *)
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1052
        IAbs ((`I "P", p_T),
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1053
              IApp (IConst (`I ho_quant, T, []),
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1054
                    IAbs ((`I "X", x_T),
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1055
                          IApp (IConst (`I "P", p_T, []),
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1056
                                IConst (`I "X", x_T, [])))))
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1057
      | tweak_ho_quant _ _ _ = raise Fail "unexpected type for quantifier"
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1058
    fun intro top_level args (IApp (tm1, tm2)) =
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1059
        IApp (intro top_level (tm2 :: args) tm1, intro false [] tm2)
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1060
      | intro top_level args (IConst (name as (s, _), T, T_args)) =
42570
77f94ac04f32 cleanup proxification/unproxification and make sure that "num_atp_type_args" is called on the proxy in the reconstruction code, since "c_fequal" has one type arg but the unproxified equal has 0
blanchet
parents: 42569
diff changeset
  1061
        (case proxify_const s of
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
  1062
           SOME proxy_base =>
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  1063
           if top_level orelse is_type_enc_higher_order type_enc then
43000
bd424c3dde46 cleaner handling of equality and proxies (esp. for THF)
blanchet
parents: 42998
diff changeset
  1064
             case (top_level, s) of
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1065
               (_, "c_False") => IConst (`I tptp_false, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1066
             | (_, "c_True") => IConst (`I tptp_true, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1067
             | (false, "c_Not") => IConst (`I tptp_not, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1068
             | (false, "c_conj") => IConst (`I tptp_and, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1069
             | (false, "c_disj") => IConst (`I tptp_or, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1070
             | (false, "c_implies") => IConst (`I tptp_implies, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1071
             | (false, "c_All") => tweak_ho_quant tptp_ho_forall T args
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1072
             | (false, "c_Ex") => tweak_ho_quant tptp_ho_exists T args
43000
bd424c3dde46 cleaner handling of equality and proxies (esp. for THF)
blanchet
parents: 42998
diff changeset
  1073
             | (false, s) =>
44097
3cae91385086 workaround THF parser limitation
blanchet
parents: 44088
diff changeset
  1074
               if is_tptp_equal s andalso length args = 2 then
3cae91385086 workaround THF parser limitation
blanchet
parents: 44088
diff changeset
  1075
                 IConst (`I tptp_equal, T, [])
3cae91385086 workaround THF parser limitation
blanchet
parents: 44088
diff changeset
  1076
               else
44589
0a1dfc6365e9 first step towards polymorphic TFF + changed defaults for Vampire
blanchet
parents: 44587
diff changeset
  1077
                 (* Use a proxy even for partially applied THF0 equality,
0a1dfc6365e9 first step towards polymorphic TFF + changed defaults for Vampire
blanchet
parents: 44587
diff changeset
  1078
                    because the LEO-II and Satallax parsers complain about not
0a1dfc6365e9 first step towards polymorphic TFF + changed defaults for Vampire
blanchet
parents: 44587
diff changeset
  1079
                    being able to infer the type of "=". *)
44097
3cae91385086 workaround THF parser limitation
blanchet
parents: 44088
diff changeset
  1080
                 IConst (proxy_base |>> prefix const_prefix, T, T_args)
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1081
             | _ => IConst (name, T, [])
42569
5737947e4c77 make sure that fequal keeps its type arguments for mangled type systems
blanchet
parents: 42568
diff changeset
  1082
           else
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1083
             IConst (proxy_base |>> prefix const_prefix, T, T_args)
45167
6bc8d260d459 gracefully handle quantifiers of the form "All $ t" where "t" is not a lambda-abstraction in higher-order translations
blanchet
parents: 44859
diff changeset
  1084
          | NONE => if s = tptp_choice then tweak_ho_quant tptp_choice T args
6bc8d260d459 gracefully handle quantifiers of the form "All $ t" where "t" is not a lambda-abstraction in higher-order translations
blanchet
parents: 44859
diff changeset
  1085
                    else IConst (name, T, T_args))
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1086
      | intro _ _ (IAbs (bound, tm)) = IAbs (bound, intro false [] tm)
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1087
      | intro _ _ tm = tm
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1088
  in intro true [] end
42568
7b9801a34836 no needless "fequal" proxies if "explicit_apply" is set + always have readable names
blanchet
parents: 42566
diff changeset
  1089
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1090
fun mangle_type_args_in_const format type_enc (name as (s, _)) T_args =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1091
  case unprefix_and_unascii const_prefix s of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1092
    NONE => (name, T_args)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1093
  | SOME s'' =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1094
    case type_arg_policy [] type_enc (invert_const s'') of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1095
      Mangled_Type_Args => (mangled_const_name format type_enc T_args name, [])
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1096
    | _ => (name, T_args)
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1097
fun mangle_type_args_in_iterm format type_enc =
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1098
  if polymorphism_of_type_enc type_enc = Mangled_Monomorphic then
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1099
    let
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1100
      fun mangle (IApp (tm1, tm2)) = IApp (mangle tm1, mangle tm2)
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1101
        | mangle (tm as IConst (_, _, [])) = tm
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1102
        | mangle (IConst (name, T, T_args)) =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1103
          mangle_type_args_in_const format type_enc name T_args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1104
          |> (fn (name, T_args) => IConst (name, T, T_args))
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1105
        | mangle (IAbs (bound, tm)) = IAbs (bound, mangle tm)
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1106
        | mangle tm = tm
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1107
    in mangle end
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1108
  else
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1109
    I
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1110
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1111
fun chop_fun 0 T = ([], T)
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1112
  | chop_fun n (Type (@{type_name fun}, [dom_T, ran_T])) =
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1113
    chop_fun (n - 1) ran_T |>> cons dom_T
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1114
  | chop_fun _ T = ([], T)
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1115
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1116
fun filter_const_type_args _ _ _ [] = []
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1117
  | filter_const_type_args thy s ary T_args =
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1118
    let
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1119
      val U = robust_const_type thy s
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1120
      val arg_U_vars = fold Term.add_tvarsT (U |> chop_fun ary |> fst) []
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1121
      val U_args = (s, U) |> robust_const_typargs thy
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1122
    in
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1123
      U_args ~~ T_args
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1124
      |> map (fn (U, T) =>
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1125
                 if member (op =) arg_U_vars (dest_TVar U) then dummyT else T)
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1126
    end
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1127
    handle TYPE _ => T_args
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1128
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1129
fun filter_type_args_in_const _ _ _ _ _ [] = []
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1130
  | filter_type_args_in_const thy monom_constrs type_enc ary s T_args =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1131
    case unprefix_and_unascii const_prefix s of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1132
      NONE =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1133
      if level_of_type_enc type_enc = No_Types orelse s = tptp_choice then []
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1134
      else T_args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1135
    | SOME s'' =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1136
      let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1137
        val s'' = invert_const s''
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1138
        fun filter_T_args false = T_args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1139
          | filter_T_args true = filter_const_type_args thy s'' ary T_args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1140
      in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1141
        case type_arg_policy monom_constrs type_enc s'' of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1142
          Explicit_Type_Args infer_from_term_args =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1143
          filter_T_args infer_from_term_args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1144
        | No_Type_Args => []
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1145
        | Mangled_Type_Args => raise Fail "unexpected (un)mangled symbol"
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1146
      end
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  1147
fun filter_type_args_in_iterm thy monom_constrs type_enc =
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1148
  let
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1149
    fun filt ary (IApp (tm1, tm2)) = IApp (filt (ary + 1) tm1, filt 0 tm2)
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1150
      | filt ary (IConst (name as (s, _), T, T_args)) =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1151
        filter_type_args_in_const thy monom_constrs type_enc ary s T_args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1152
        |> (fn T_args => IConst (name, T, T_args))
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1153
      | filt _ (IAbs (bound, tm)) = IAbs (bound, filt 0 tm)
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1154
      | filt _ tm = tm
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1155
  in filt 0 end
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1156
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1157
fun iformula_from_prop ctxt format type_enc eq_as_iff =
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1158
  let
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1159
    val thy = Proof_Context.theory_of ctxt
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1160
    fun do_term bs t atomic_Ts =
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
  1161
      iterm_from_term thy format bs (Envir.eta_contract t)
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1162
      |>> (introduce_proxies_in_iterm type_enc
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1163
           #> mangle_type_args_in_iterm format type_enc #> AAtom)
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1164
      ||> union (op =) atomic_Ts
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1165
    fun do_quant bs q pos s T t' =
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1166
      let
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1167
        val s = singleton (Name.variant_list (map fst bs)) s
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1168
        val universal = Option.map (q = AExists ? not) pos
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1169
        val name =
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1170
          s |> `(case universal of
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1171
                   SOME true => make_all_bound_var
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1172
                 | SOME false => make_exist_bound_var
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1173
                 | NONE => make_bound_var)
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1174
      in
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1175
        do_formula ((s, (name, T)) :: bs) pos t'
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1176
        #>> mk_aquant q [(name, SOME T)]
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1177
        ##> union (op =) (atomic_types_of T)
38518
54727b44e277 handle bound name conflicts gracefully in FOF translation
blanchet
parents: 38496
diff changeset
  1178
      end
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1179
    and do_conn bs c pos1 t1 pos2 t2 =
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1180
      do_formula bs pos1 t1 ##>> do_formula bs pos2 t2 #>> uncurry (mk_aconn c)
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1181
    and do_formula bs pos t =
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1182
      case t of
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1183
        @{const Trueprop} $ t1 => do_formula bs pos t1
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1184
      | @{const Not} $ t1 => do_formula bs (Option.map not pos) t1 #>> mk_anot
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1185
      | Const (@{const_name All}, _) $ Abs (s, T, t') =>
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1186
        do_quant bs AForall pos s T t'
45167
6bc8d260d459 gracefully handle quantifiers of the form "All $ t" where "t" is not a lambda-abstraction in higher-order translations
blanchet
parents: 44859
diff changeset
  1187
      | (t0 as Const (@{const_name All}, _)) $ t1 =>
6bc8d260d459 gracefully handle quantifiers of the form "All $ t" where "t" is not a lambda-abstraction in higher-order translations
blanchet
parents: 44859
diff changeset
  1188
        do_formula bs pos (t0 $ eta_expand (map (snd o snd) bs) t1 1)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1189
      | Const (@{const_name Ex}, _) $ Abs (s, T, t') =>
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1190
        do_quant bs AExists pos s T t'
45167
6bc8d260d459 gracefully handle quantifiers of the form "All $ t" where "t" is not a lambda-abstraction in higher-order translations
blanchet
parents: 44859
diff changeset
  1191
      | (t0 as Const (@{const_name Ex}, _)) $ t1 =>
6bc8d260d459 gracefully handle quantifiers of the form "All $ t" where "t" is not a lambda-abstraction in higher-order translations
blanchet
parents: 44859
diff changeset
  1192
        do_formula bs pos (t0 $ eta_expand (map (snd o snd) bs) t1 1)
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1193
      | @{const HOL.conj} $ t1 $ t2 => do_conn bs AAnd pos t1 pos t2
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1194
      | @{const HOL.disj} $ t1 $ t2 => do_conn bs AOr pos t1 pos t2
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1195
      | @{const HOL.implies} $ t1 $ t2 =>
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1196
        do_conn bs AImplies (Option.map not pos) t1 pos t2
38864
4abe644fcea5 formerly unnamed infix equality now named HOL.eq
haftmann
parents: 38829
diff changeset
  1197
      | Const (@{const_name HOL.eq}, Type (_, [@{typ bool}, _])) $ t1 $ t2 =>
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1198
        if eq_as_iff then do_conn bs AIff NONE t1 NONE t2 else do_term bs t
41140
9c68004b8c9d added Sledgehammer support for higher-order propositional reasoning
blanchet
parents: 41138
diff changeset
  1199
      | _ => do_term bs t
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1200
  in do_formula [] end
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1201
46093
blanchet
parents: 46071
diff changeset
  1202
fun presimplify_term ctxt t =
blanchet
parents: 46071
diff changeset
  1203
  t |> exists_Const (member (op =) Meson.presimplified_consts o fst) t
blanchet
parents: 46071
diff changeset
  1204
       ? (Skip_Proof.make_thm (Proof_Context.theory_of ctxt)
blanchet
parents: 46071
diff changeset
  1205
          #> Meson.presimplify
blanchet
parents: 46071
diff changeset
  1206
          #> prop_of)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1207
43265
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1208
fun is_fun_equality (@{const_name HOL.eq},
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1209
                     Type (_, [Type (@{type_name fun}, _), _])) = true
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1210
  | is_fun_equality _ = false
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1211
42747
f132d13fcf75 use the same code for extensionalization in Metis and Sledgehammer and generalize that code so that it gracefully handles negations (e.g. negated conjecture), formulas of the form (%x. t) = u, etc.
blanchet
parents: 42742
diff changeset
  1212
fun extensionalize_term ctxt t =
43265
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1213
  if exists_Const is_fun_equality t then
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1214
    let val thy = Proof_Context.theory_of ctxt in
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1215
      t |> cterm_of thy |> Meson.extensionalize_conv ctxt
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1216
        |> prop_of |> Logic.dest_equals |> snd
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1217
    end
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1218
  else
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1219
    t
38608
01ed56c46259 beta eta contract the Sledgehammer conjecture (and also the axioms, although this might not be needed), just like Metis does (implicitly);
blanchet
parents: 38606
diff changeset
  1220
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1221
fun preprocess_abstractions_in_terms trans_lams facts =
43862
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
  1222
  let
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1223
    val (facts, lambda_ts) =
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1224
      facts |> map (snd o snd) |> trans_lams
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1225
            |>> map2 (fn (name, (kind, _)) => fn t => (name, (kind, t))) facts
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
  1226
    val lam_facts =
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1227
      map2 (fn t => fn j =>
46393
blanchet
parents: 46392
diff changeset
  1228
               ((lam_fact_prefix ^ Int.toString j, (Global, Spec_Eq)),
blanchet
parents: 46392
diff changeset
  1229
                (Axiom, t)))
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1230
           lambda_ts (1 upto length lambda_ts)
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
  1231
  in (facts, lam_facts) end
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1232
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1233
(* Metis's use of "resolve_tac" freezes the schematic variables. We simulate the
42353
7797efa897a1 correctly handle TFrees that occur in (local) facts -- Metis did the right thing here but Sledgehammer was incorrectly generating spurious preconditions such as "dense_linorder(t_a)"
blanchet
parents: 42237
diff changeset
  1234
   same in Sledgehammer to prevent the discovery of unreplayable proofs. *)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1235
fun freeze_term t =
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1236
  let
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1237
    fun freeze (t $ u) = freeze t $ freeze u
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1238
      | freeze (Abs (s, T, t)) = Abs (s, T, freeze t)
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1239
      | freeze (Var ((s, i), T)) =
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1240
        Free (atp_weak_prefix ^ s ^ "_" ^ string_of_int i, T)
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1241
      | freeze t = t
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1242
  in t |> exists_subterm is_Var t ? freeze end
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1243
46818
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1244
fun default_formula role = if role = Conjecture then @{term False} else @{term True}
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1245
46093
blanchet
parents: 46071
diff changeset
  1246
fun presimp_prop ctxt role t =
45202
62b8bcf24773 avoid generating too meta theorems -- this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents: 45168
diff changeset
  1247
  (let
62b8bcf24773 avoid generating too meta theorems -- this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents: 45168
diff changeset
  1248
     val thy = Proof_Context.theory_of ctxt
62b8bcf24773 avoid generating too meta theorems -- this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents: 45168
diff changeset
  1249
     val t = t |> Envir.beta_eta_contract
62b8bcf24773 avoid generating too meta theorems -- this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents: 45168
diff changeset
  1250
               |> transform_elim_prop
62b8bcf24773 avoid generating too meta theorems -- this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents: 45168
diff changeset
  1251
               |> Object_Logic.atomize_term thy
62b8bcf24773 avoid generating too meta theorems -- this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents: 45168
diff changeset
  1252
     val need_trueprop = (fastype_of t = @{typ bool})
62b8bcf24773 avoid generating too meta theorems -- this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents: 45168
diff changeset
  1253
   in
62b8bcf24773 avoid generating too meta theorems -- this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents: 45168
diff changeset
  1254
     t |> need_trueprop ? HOLogic.mk_Trueprop
62b8bcf24773 avoid generating too meta theorems -- this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents: 45168
diff changeset
  1255
       |> extensionalize_term ctxt
46093
blanchet
parents: 46071
diff changeset
  1256
       |> presimplify_term ctxt
45202
62b8bcf24773 avoid generating too meta theorems -- this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents: 45168
diff changeset
  1257
       |> HOLogic.dest_Trueprop
62b8bcf24773 avoid generating too meta theorems -- this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents: 45168
diff changeset
  1258
   end
46818
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1259
   handle TERM _ => default_formula role)
45202
62b8bcf24773 avoid generating too meta theorems -- this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents: 45168
diff changeset
  1260
  |> pair role
43096
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1261
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1262
fun make_formula ctxt format type_enc eq_as_iff name stature kind t =
43096
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1263
  let
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1264
    val (iformula, atomic_Ts) =
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1265
      iformula_from_prop ctxt format type_enc eq_as_iff
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1266
                         (SOME (kind <> Conjecture)) t []
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1267
      |>> close_iformula_universally
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1268
  in
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1269
    {name = name, stature = stature, kind = kind, iformula = iformula,
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1270
     atomic_types = atomic_Ts}
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1271
  end
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1272
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1273
fun make_fact ctxt format type_enc eq_as_iff ((name, stature), t) =
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1274
  case t |> make_formula ctxt format type_enc (eq_as_iff andalso format <> CNF)
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1275
                         name stature Axiom of
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1276
    formula as {iformula = AAtom (IConst ((s, _), _, _)), ...} =>
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1277
    if s = tptp_true then NONE else SOME formula
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1278
  | formula => SOME formula
42561
23ddc4e3d19c have properly type-instantiated helper facts (combinators and If)
blanchet
parents: 42560
diff changeset
  1279
46385
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
  1280
fun s_not_trueprop (@{const Trueprop} $ t) = @{const Trueprop} $ s_not t
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
  1281
  | s_not_trueprop t =
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
  1282
    if fastype_of t = @{typ bool} then s_not t
46377
dce6c3a460a9 new try at lambda-lifting that works correctly for both Metis and Sledgehammer (cf. d724066ff3d0)
blanchet
parents: 46375
diff changeset
  1283
    else @{prop False} (* "t" is too meta *)
44460
blanchet
parents: 44450
diff changeset
  1284
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1285
fun make_conjecture ctxt format type_enc =
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1286
  map (fn ((name, stature), (kind, t)) =>
46385
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
  1287
          t |> kind = Conjecture ? s_not_trueprop
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1288
            |> make_formula ctxt format type_enc (format <> CNF) name stature
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1289
                            kind)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1290
42682
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1291
(** Finite and infinite type inference **)
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1292
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1293
fun tvar_footprint thy s ary =
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1294
  (case unprefix_and_unascii const_prefix s of
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1295
     SOME s =>
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1296
     s |> invert_const |> robust_const_type thy |> chop_fun ary |> fst
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1297
       |> map (fn T => Term.add_tvarsT T [] |> map fst)
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1298
   | NONE => [])
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1299
  handle TYPE _ => []
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1300
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1301
fun ghost_type_args thy s ary =
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1302
  if is_tptp_equal s then
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1303
    0 upto ary - 1
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1304
  else
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1305
    let
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1306
      val footprint = tvar_footprint thy s ary
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1307
      val eq = (s = @{const_name HOL.eq})
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1308
      fun ghosts _ [] = []
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1309
        | ghosts seen ((i, tvars) :: args) =
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1310
          ghosts (union (op =) seen tvars) args
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1311
          |> (eq orelse exists (fn tvar => not (member (op =) seen tvar)) tvars)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1312
             ? cons i
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1313
    in
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1314
      if forall null footprint then
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1315
        []
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1316
      else
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1317
        0 upto length footprint - 1 ~~ footprint
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1318
        |> sort (rev_order o list_ord Term_Ord.indexname_ord o pairself snd)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1319
        |> ghosts []
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1320
    end
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1321
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1322
type monotonicity_info =
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1323
  {maybe_finite_Ts : typ list,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1324
   surely_finite_Ts : typ list,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1325
   maybe_infinite_Ts : typ list,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1326
   surely_infinite_Ts : typ list,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1327
   maybe_nonmono_Ts : typ list}
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1328
44397
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
  1329
(* These types witness that the type classes they belong to allow infinite
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
  1330
   models and hence that any types with these type classes is monotonic. *)
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
  1331
val known_infinite_types =
44634
2ac4ff398bc3 make "sound" sound and "unsound" more sound, based on evaluation
blanchet
parents: 44626
diff changeset
  1332
  [@{typ nat}, HOLogic.intT, HOLogic.realT, @{typ "nat => bool"}]
44397
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
  1333
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  1334
fun is_type_kind_of_surely_infinite ctxt strictness cached_Ts T =
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  1335
  strictness <> Strict andalso is_type_surely_infinite ctxt true cached_Ts T
42886
208ec29cc013 improved "poly_preds_{bang,query}" by picking up good witnesses for the possible infinity of common type classes and ensuring that "?'a::type" doesn't ruin everything
blanchet
parents: 42885
diff changeset
  1336
42682
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1337
(* Finite types such as "unit", "bool", "bool * bool", and "bool => bool" are
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1338
   dangerous because their "exhaust" properties can easily lead to unsound ATP
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1339
   proofs. On the other hand, all HOL infinite types can be given the same
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1340
   models in first-order logic (via Löwenheim-Skolem). *)
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1341
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1342
fun should_encode_type _ (_ : monotonicity_info) All_Types _ = true
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1343
  | should_encode_type ctxt {maybe_finite_Ts, surely_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1344
                             maybe_nonmono_Ts, ...}
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  1345
                       (Noninf_Nonmono_Types (strictness, grain)) T =
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1346
    grain = Ghost_Type_Arg_Vars orelse
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1347
    (exists (type_intersect ctxt T) maybe_nonmono_Ts andalso
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1348
     not (exists (type_instance ctxt T) surely_infinite_Ts orelse
44859
237ba63d6041 fixed definition of type intersection (soundness bug)
blanchet
parents: 44853
diff changeset
  1349
          (not (member (type_equiv ctxt) maybe_finite_Ts T) andalso
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  1350
           is_type_kind_of_surely_infinite ctxt strictness surely_infinite_Ts
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1351
                                           T)))
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1352
  | should_encode_type ctxt {surely_finite_Ts, maybe_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1353
                             maybe_nonmono_Ts, ...}
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1354
                       (Fin_Nonmono_Types grain) T =
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1355
    grain = Ghost_Type_Arg_Vars orelse
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1356
    (exists (type_intersect ctxt T) maybe_nonmono_Ts andalso
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1357
     (exists (type_generalization ctxt T) surely_finite_Ts orelse
44859
237ba63d6041 fixed definition of type intersection (soundness bug)
blanchet
parents: 44853
diff changeset
  1358
      (not (member (type_equiv ctxt) maybe_infinite_Ts T) andalso
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1359
       is_type_surely_finite ctxt T)))
42682
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1360
  | should_encode_type _ _ _ _ = false
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1361
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  1362
fun should_guard_type ctxt mono (Guards (_, level)) should_guard_var T =
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1363
    should_guard_var () andalso should_encode_type ctxt mono level T
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1364
  | should_guard_type _ _ _ _ _ = false
42682
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1365
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1366
fun is_maybe_universal_var (IConst ((s, _), _, _)) =
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1367
    String.isPrefix bound_var_prefix s orelse
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1368
    String.isPrefix all_bound_var_prefix s
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1369
  | is_maybe_universal_var (IVar _) = true
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1370
  | is_maybe_universal_var _ = false
42836
9adf6b3965b3 code cleanup, better handling of corner cases
blanchet
parents: 42834
diff changeset
  1371
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1372
datatype site =
43361
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1373
  Top_Level of bool option |
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1374
  Eq_Arg of bool option |
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1375
  Elsewhere
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  1376
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1377
fun should_tag_with_type _ _ _ (Top_Level _) _ _ = false
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1378
  | should_tag_with_type ctxt mono (Tags (_, level)) site u T =
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1379
    if granularity_of_type_level level = All_Vars then
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1380
      should_encode_type ctxt mono level T
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1381
    else
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1382
      (case (site, is_maybe_universal_var u) of
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1383
         (Eq_Arg _, true) => should_encode_type ctxt mono level T
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1384
       | _ => false)
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1385
  | should_tag_with_type _ _ _ _ _ _ = false
42682
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1386
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  1387
fun fused_type ctxt mono level =
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  1388
  let
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1389
    val should_encode = should_encode_type ctxt mono level
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  1390
    fun fuse 0 T = if should_encode T then T else fused_infinite_type
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  1391
      | fuse ary (Type (@{type_name fun}, [T1, T2])) =
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  1392
        fuse 0 T1 --> fuse (ary - 1) T2
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  1393
      | fuse _ _ = raise Fail "expected function type"
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  1394
  in fuse end
42682
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1395
44450
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1396
(** predicators and application operators **)
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  1397
42574
blanchet
parents: 42573
diff changeset
  1398
type sym_info =
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1399
  {pred_sym : bool, min_ary : int, max_ary : int, types : typ list,
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1400
   in_conj : bool}
42563
e70ffe3846d0 improve helper type instantiation code
blanchet
parents: 42562
diff changeset
  1401
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1402
fun default_sym_tab_entries type_enc =
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1403
  (make_fixed_const NONE @{const_name undefined},
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1404
       {pred_sym = false, min_ary = 0, max_ary = 0, types = [],
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1405
        in_conj = false}) ::
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1406
  ([tptp_false, tptp_true]
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1407
   |> map (rpair {pred_sym = true, min_ary = 0, max_ary = 0, types = [],
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1408
                  in_conj = false})) @
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1409
  ([tptp_equal, tptp_old_equal]
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1410
   |> map (rpair {pred_sym = true, min_ary = 2, max_ary = 2, types = [],
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1411
                  in_conj = false}))
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1412
  |> not (is_type_enc_higher_order type_enc)
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1413
     ? cons (prefixed_predicator_name,
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1414
             {pred_sym = true, min_ary = 1, max_ary = 1, types = [],
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1415
              in_conj = false})
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1416
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1417
datatype app_op_level =
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1418
  Min_App_Op |
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1419
  Sufficient_App_Op |
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1420
  Sufficient_App_Op_And_Predicator |
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1421
  Full_App_Op_And_Predicator
46389
blanchet
parents: 46385
diff changeset
  1422
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1423
fun sym_table_for_facts ctxt type_enc app_op_level conjs facts =
42558
3d9930cb6770 cleaned up "explicit_apply" so that it shares most of its code path with the default mode of operation
blanchet
parents: 42557
diff changeset
  1424
  let
46642
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
  1425
    val thy = Proof_Context.theory_of ctxt
44772
blanchet
parents: 44771
diff changeset
  1426
    fun consider_var_ary const_T var_T max_ary =
43064
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
  1427
      let
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
  1428
        fun iter ary T =
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1429
          if ary = max_ary orelse type_instance ctxt var_T T orelse
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1430
             type_instance ctxt T var_T then
43210
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1431
            ary
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1432
          else
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1433
            iter (ary + 1) (range_type T)
43064
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
  1434
      in iter 0 const_T end
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1435
    fun add_universal_var T (accum as ((bool_vars, fun_var_Ts), sym_tab)) =
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1436
      if (app_op_level = Sufficient_App_Op andalso can dest_funT T) orelse
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1437
         (app_op_level = Sufficient_App_Op_And_Predicator andalso
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1438
          (can dest_funT T orelse T = @{typ bool})) then
43201
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1439
        let
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1440
          val bool_vars' =
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1441
            bool_vars orelse
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1442
            (app_op_level = Sufficient_App_Op_And_Predicator andalso
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1443
             body_type T = @{typ bool})
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1444
          fun repair_min_ary {pred_sym, min_ary, max_ary, types, in_conj} =
43201
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1445
            {pred_sym = pred_sym andalso not bool_vars',
44772
blanchet
parents: 44771
diff changeset
  1446
             min_ary = fold (fn T' => consider_var_ary T' T) types min_ary,
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1447
             max_ary = max_ary, types = types, in_conj = in_conj}
43201
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1448
          val fun_var_Ts' =
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1449
            fun_var_Ts |> can dest_funT T ? insert_type ctxt I T
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1450
        in
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1451
          if bool_vars' = bool_vars andalso
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1452
             pointer_eq (fun_var_Ts', fun_var_Ts) then
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1453
            accum
43167
839f599bc7ed ensured that the logic for "explicit_apply = smart" also works on CNF (i.e. new Metis)
blanchet
parents: 43159
diff changeset
  1454
          else
44772
blanchet
parents: 44771
diff changeset
  1455
            ((bool_vars', fun_var_Ts'), Symtab.map (K repair_min_ary) sym_tab)
43201
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1456
        end
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1457
      else
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1458
        accum
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1459
      fun add_iterm_syms conj_fact top_level tm
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1460
                         (accum as ((bool_vars, fun_var_Ts), sym_tab)) =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1461
        let val (head, args) = strip_iterm_comb tm in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1462
          (case head of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1463
             IConst ((s, _), T, _) =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1464
             if String.isPrefix bound_var_prefix s orelse
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1465
                String.isPrefix all_bound_var_prefix s then
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1466
               add_universal_var T accum
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1467
             else if String.isPrefix exist_bound_var_prefix s then
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1468
               accum
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1469
             else
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1470
               let val ary = length args in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1471
                 ((bool_vars, fun_var_Ts),
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1472
                  case Symtab.lookup sym_tab s of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1473
                    SOME {pred_sym, min_ary, max_ary, types, in_conj} =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1474
                    let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1475
                      val pred_sym =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1476
                        pred_sym andalso top_level andalso not bool_vars
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1477
                      val types' = types |> insert_type ctxt I T
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1478
                      val in_conj = in_conj orelse conj_fact
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1479
                      val min_ary =
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1480
                        if (app_op_level = Sufficient_App_Op orelse
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1481
                            app_op_level = Sufficient_App_Op_And_Predicator)
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1482
                           andalso not (pointer_eq (types', types)) then
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1483
                          fold (consider_var_ary T) fun_var_Ts min_ary
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1484
                        else
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1485
                          min_ary
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1486
                    in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1487
                      Symtab.update (s, {pred_sym = pred_sym,
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1488
                                         min_ary = Int.min (ary, min_ary),
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1489
                                         max_ary = Int.max (ary, max_ary),
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1490
                                         types = types', in_conj = in_conj})
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1491
                                    sym_tab
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1492
                    end
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1493
                  | NONE =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1494
                    let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1495
                      val pred_sym = top_level andalso not bool_vars
46639
d0ef1d1562d7 fixed arity bug with "If" helpers for "If" that returns a function
blanchet
parents: 46450
diff changeset
  1496
                      val ary =
d0ef1d1562d7 fixed arity bug with "If" helpers for "If" that returns a function
blanchet
parents: 46450
diff changeset
  1497
                        case unprefix_and_unascii const_prefix s of
d0ef1d1562d7 fixed arity bug with "If" helpers for "If" that returns a function
blanchet
parents: 46450
diff changeset
  1498
                          SOME s =>
46642
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
  1499
                          (if String.isSubstring uncurried_alias_sep s then
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
  1500
                             ary
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
  1501
                           else case try (robust_const_ary thy
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
  1502
                                          o invert_const o hd
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
  1503
                                          o unmangled_const_name) s of
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
  1504
                             SOME ary0 => Int.min (ary0, ary)
37a055f37224 general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant
blanchet
parents: 46639
diff changeset
  1505
                           | NONE => ary)
46639
d0ef1d1562d7 fixed arity bug with "If" helpers for "If" that returns a function
blanchet
parents: 46450
diff changeset
  1506
                        | NONE => ary
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1507
                      val min_ary =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1508
                        case app_op_level of
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1509
                          Min_App_Op => ary
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1510
                        | Full_App_Op_And_Predicator => 0
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1511
                        | _ => fold (consider_var_ary T) fun_var_Ts ary
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1512
                    in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1513
                      Symtab.update_new (s,
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1514
                          {pred_sym = pred_sym, min_ary = min_ary,
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1515
                           max_ary = ary, types = [T], in_conj = conj_fact})
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1516
                          sym_tab
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1517
                    end)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1518
               end
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1519
           | IVar (_, T) => add_universal_var T accum
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1520
           | IAbs ((_, T), tm) =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1521
             accum |> add_universal_var T |> add_iterm_syms conj_fact false tm
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1522
           | _ => accum)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1523
          |> fold (add_iterm_syms conj_fact false) args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1524
        end
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1525
    fun add_fact_syms conj_fact =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1526
      K (add_iterm_syms conj_fact true) |> formula_fold NONE |> fact_lift
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1527
  in
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1528
    ((false, []), Symtab.empty)
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1529
    |> fold (add_fact_syms true) conjs
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1530
    |> fold (add_fact_syms false) facts
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1531
    |> snd
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1532
    |> fold Symtab.update (default_sym_tab_entries type_enc)
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1533
  end
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1534
44772
blanchet
parents: 44771
diff changeset
  1535
fun min_ary_of sym_tab s =
42558
3d9930cb6770 cleaned up "explicit_apply" so that it shares most of its code path with the default mode of operation
blanchet
parents: 42557
diff changeset
  1536
  case Symtab.lookup sym_tab s of
42574
blanchet
parents: 42573
diff changeset
  1537
    SOME ({min_ary, ...} : sym_info) => min_ary
42558
3d9930cb6770 cleaned up "explicit_apply" so that it shares most of its code path with the default mode of operation
blanchet
parents: 42557
diff changeset
  1538
  | NONE =>
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1539
    case unprefix_and_unascii const_prefix s of
42547
b5eec0c99528 fixed arity of special constants if "explicit_apply" is set
blanchet
parents: 42546
diff changeset
  1540
      SOME s =>
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1541
      let val s = s |> unmangled_const_name |> hd |> invert_const in
42966
4e2d6c1e5392 more work on parsing LEO-II proofs without lambdas
blanchet
parents: 42963
diff changeset
  1542
        if s = predicator_name then 1
4e2d6c1e5392 more work on parsing LEO-II proofs without lambdas
blanchet
parents: 42963
diff changeset
  1543
        else if s = app_op_name then 2
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  1544
        else if s = type_guard_name then 1
42557
ae0deb39a254 fixed min-arity computation when "explicit_apply" is specified
blanchet
parents: 42556
diff changeset
  1545
        else 0
42547
b5eec0c99528 fixed arity of special constants if "explicit_apply" is set
blanchet
parents: 42546
diff changeset
  1546
      end
42544
75cb06eee990 reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents: 42543
diff changeset
  1547
    | NONE => 0
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1548
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1549
(* True if the constant ever appears outside of the top-level position in
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1550
   literals, or if it appears with different arities (e.g., because of different
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1551
   type instantiations). If false, the constant always receives all of its
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1552
   arguments and is used as a predicate. *)
42558
3d9930cb6770 cleaned up "explicit_apply" so that it shares most of its code path with the default mode of operation
blanchet
parents: 42557
diff changeset
  1553
fun is_pred_sym sym_tab s =
3d9930cb6770 cleaned up "explicit_apply" so that it shares most of its code path with the default mode of operation
blanchet
parents: 42557
diff changeset
  1554
  case Symtab.lookup sym_tab s of
42574
blanchet
parents: 42573
diff changeset
  1555
    SOME ({pred_sym, min_ary, max_ary, ...} : sym_info) =>
blanchet
parents: 42573
diff changeset
  1556
    pred_sym andalso min_ary = max_ary
42558
3d9930cb6770 cleaned up "explicit_apply" so that it shares most of its code path with the default mode of operation
blanchet
parents: 42557
diff changeset
  1557
  | NONE => false
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1558
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1559
val app_op = `(make_fixed_const NONE) app_op_name
42568
7b9801a34836 no needless "fequal" proxies if "explicit_apply" is set + always have readable names
blanchet
parents: 42566
diff changeset
  1560
val predicator_combconst =
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
  1561
  IConst (`(make_fixed_const NONE) predicator_name, @{typ "bool => bool"}, [])
42542
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
  1562
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1563
fun list_app head args = fold (curry (IApp o swap)) args head
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1564
fun predicator tm = IApp (predicator_combconst, tm)
42544
75cb06eee990 reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents: 42543
diff changeset
  1565
46410
78ff6a886b50 made sure to filter type args also for "uncurried alias" equations
blanchet
parents: 46409
diff changeset
  1566
fun mk_app_op format type_enc head arg =
42544
75cb06eee990 reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents: 42543
diff changeset
  1567
  let
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1568
    val head_T = ityp_of head
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1569
    val (arg_T, res_T) = dest_funT head_T
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1570
    val app =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1571
      IConst (app_op, head_T --> head_T, [arg_T, res_T])
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1572
      |> mangle_type_args_in_iterm format type_enc
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1573
  in list_app app [head, arg] end
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1574
46400
9ce354a77908 don't introduce new symbols in helpers -- makes problems unprovable
blanchet
parents: 46399
diff changeset
  1575
fun firstorderize_fact thy monom_constrs format type_enc sym_tab
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  1576
                       uncurried_aliases =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1577
  let
46410
78ff6a886b50 made sure to filter type args also for "uncurried alias" equations
blanchet
parents: 46409
diff changeset
  1578
    fun do_app arg head = mk_app_op format type_enc head arg
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1579
    fun list_app_ops head args = fold do_app args head
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1580
    fun introduce_app_ops tm =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1581
      let val (head, args) = tm |> strip_iterm_comb ||> map introduce_app_ops in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1582
        case head of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1583
          IConst (name as (s, _), T, T_args) =>
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  1584
          if uncurried_aliases andalso String.isPrefix const_prefix s then
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1585
            let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1586
              val ary = length args
46639
d0ef1d1562d7 fixed arity bug with "If" helpers for "If" that returns a function
blanchet
parents: 46450
diff changeset
  1587
              val name =
d0ef1d1562d7 fixed arity bug with "If" helpers for "If" that returns a function
blanchet
parents: 46450
diff changeset
  1588
                name |> ary > min_ary_of sym_tab s ? aliased_uncurried ary
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1589
            in list_app (IConst (name, T, T_args)) args end
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1590
          else
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1591
            args |> chop (min_ary_of sym_tab s)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1592
                 |>> list_app head |-> list_app_ops
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1593
        | _ => list_app_ops head args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1594
      end
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1595
    fun introduce_predicators tm =
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1596
      case strip_iterm_comb tm of
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1597
        (IConst ((s, _), _, _), _) =>
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1598
        if is_pred_sym sym_tab s then tm else predicator tm
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1599
      | _ => predicator tm
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1600
    val do_iterm =
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1601
      not (is_type_enc_higher_order type_enc)
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1602
      ? (introduce_app_ops #> introduce_predicators)
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  1603
      #> filter_type_args_in_iterm thy monom_constrs type_enc
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1604
  in update_iformula (formula_map do_iterm) end
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1605
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1606
(** Helper facts **)
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1607
44450
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1608
val not_ffalse = @{lemma "~ fFalse" by (unfold fFalse_def) fast}
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1609
val ftrue = @{lemma "fTrue" by (unfold fTrue_def) fast}
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1610
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1611
(* The Boolean indicates that a fairly sound type encoding is needed. *)
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1612
val helper_table =
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1613
  [(("COMBI", false), @{thms Meson.COMBI_def}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1614
   (("COMBK", false), @{thms Meson.COMBK_def}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1615
   (("COMBB", false), @{thms Meson.COMBB_def}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1616
   (("COMBC", false), @{thms Meson.COMBC_def}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1617
   (("COMBS", false), @{thms Meson.COMBS_def}),
44450
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1618
   ((predicator_name, false), [not_ffalse, ftrue]),
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1619
   (("fFalse", false), [not_ffalse]),
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1620
   (("fFalse", true), @{thms True_or_False}),
44450
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1621
   (("fTrue", false), [ftrue]),
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1622
   (("fTrue", true), @{thms True_or_False}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1623
   (("fNot", false),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1624
    @{thms fNot_def [THEN Meson.iff_to_disjD, THEN conjunct1]
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1625
           fNot_def [THEN Meson.iff_to_disjD, THEN conjunct2]}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1626
   (("fconj", false),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1627
    @{lemma "~ P | ~ Q | fconj P Q" "~ fconj P Q | P" "~ fconj P Q | Q"
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1628
        by (unfold fconj_def) fast+}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1629
   (("fdisj", false),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1630
    @{lemma "~ P | fdisj P Q" "~ Q | fdisj P Q" "~ fdisj P Q | P | Q"
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1631
        by (unfold fdisj_def) fast+}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1632
   (("fimplies", false),
43210
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1633
    @{lemma "P | fimplies P Q" "~ Q | fimplies P Q" "~ fimplies P Q | ~ P | Q"
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1634
        by (unfold fimplies_def) fast+}),
43678
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
  1635
   (("fequal", true),
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
  1636
    (* This is a lie: Higher-order equality doesn't need a sound type encoding.
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
  1637
       However, this is done so for backward compatibility: Including the
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
  1638
       equality helpers by default in Metis breaks a few existing proofs. *)
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
  1639
    @{thms fequal_def [THEN Meson.iff_to_disjD, THEN conjunct1]
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
  1640
           fequal_def [THEN Meson.iff_to_disjD, THEN conjunct2]}),
44003
0a0ee31ec20a added helpers for "All" and "Ex"
blanchet
parents: 44001
diff changeset
  1641
   (* Partial characterization of "fAll" and "fEx". A complete characterization
0a0ee31ec20a added helpers for "All" and "Ex"
blanchet
parents: 44001
diff changeset
  1642
      would require the axiom of choice for replay with Metis. *)
0a0ee31ec20a added helpers for "All" and "Ex"
blanchet
parents: 44001
diff changeset
  1643
   (("fAll", false), [@{lemma "~ fAll P | P x" by (auto simp: fAll_def)}]),
0a0ee31ec20a added helpers for "All" and "Ex"
blanchet
parents: 44001
diff changeset
  1644
   (("fEx", false), [@{lemma "~ P x | fEx P" by (auto simp: fEx_def)}]),
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1645
   (("If", true), @{thms if_True if_False True_or_False})]
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1646
  |> map (apsnd (map zero_var_indexes))
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1647
45364
d00339ae7fff repaired quantification over type variables for non-TFF1/THF encodings
blanchet
parents: 45316
diff changeset
  1648
fun atype_of_type_vars (Simple_Types (_, Polymorphic, _)) = SOME atype_of_types
d00339ae7fff repaired quantification over type variables for non-TFF1/THF encodings
blanchet
parents: 45316
diff changeset
  1649
  | atype_of_type_vars _ = NONE
d00339ae7fff repaired quantification over type variables for non-TFF1/THF encodings
blanchet
parents: 45316
diff changeset
  1650
45920
ddbe94f7242c ensure TPTP FOF/TFF/THF formulas are close
blanchet
parents: 45875
diff changeset
  1651
fun bound_tvars type_enc sorts Ts =
ddbe94f7242c ensure TPTP FOF/TFF/THF formulas are close
blanchet
parents: 45875
diff changeset
  1652
  (sorts ? mk_ahorn (formulas_for_types type_enc add_sorts_on_tvar Ts))
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1653
  #> mk_aquant AForall
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1654
        (map_filter (fn TVar (x as (s, _), _) =>
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1655
                        SOME ((make_schematic_type_var x, s),
45364
d00339ae7fff repaired quantification over type variables for non-TFF1/THF encodings
blanchet
parents: 45316
diff changeset
  1656
                              atype_of_type_vars type_enc)
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1657
                      | _ => NONE) Ts)
44404
3111af540141 tuning, plus started implementing tag equation generation for existential variables
blanchet
parents: 44403
diff changeset
  1658
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1659
fun eq_formula type_enc atomic_Ts bounds pred_sym tm1 tm2 =
44404
3111af540141 tuning, plus started implementing tag equation generation for existential variables
blanchet
parents: 44403
diff changeset
  1660
  (if pred_sym then AConn (AIff, [AAtom tm1, AAtom tm2])
3111af540141 tuning, plus started implementing tag equation generation for existential variables
blanchet
parents: 44403
diff changeset
  1661
   else AAtom (ATerm (`I tptp_equal, [tm1, tm2])))
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1662
  |> mk_aquant AForall bounds
45377
blanchet
parents: 45364
diff changeset
  1663
  |> close_formula_universally
45920
ddbe94f7242c ensure TPTP FOF/TFF/THF formulas are close
blanchet
parents: 45875
diff changeset
  1664
  |> bound_tvars type_enc true atomic_Ts
44404
3111af540141 tuning, plus started implementing tag equation generation for existential variables
blanchet
parents: 44403
diff changeset
  1665
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1666
val helper_rank = default_rank
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1667
val min_rank = 9 * helper_rank div 10
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1668
val max_rank = 4 * min_rank
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1669
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1670
fun rank_of_fact_num n j = min_rank + (max_rank - min_rank) * j div n
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1671
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
  1672
val type_tag = `(make_fixed_const NONE) type_tag_name
43130
d73fc2e55308 implemented missing hAPP and ti cases of new path finder
blanchet
parents: 43129
diff changeset
  1673
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  1674
fun should_specialize_helper type_enc t =
44493
c2602c5d4b0a handle nonmangled monomorphich the same way as mangled monomorphic when it comes to helper -- otherwise we can end up generating too tight type guards
blanchet
parents: 44491
diff changeset
  1675
  polymorphism_of_type_enc type_enc <> Polymorphic andalso
43628
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1676
  level_of_type_enc type_enc <> No_Types andalso
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1677
  not (null (Term.hidden_polymorphism t))
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
  1678
43858
be41d12de6fa simplify code -- there are no lambdas in helpers anyway
blanchet
parents: 43857
diff changeset
  1679
fun helper_facts_for_sym ctxt format type_enc (s, {types, ...} : sym_info) =
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1680
  case unprefix_and_unascii const_prefix s of
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1681
    SOME mangled_s =>
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1682
    let
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1683
      val thy = Proof_Context.theory_of ctxt
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1684
      val unmangled_s = mangled_s |> unmangled_const_name |> hd
43628
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1685
      fun dub needs_fairly_sound j k =
46339
6268c5b3efdc generate left-to-right rewrite tag for combinator helpers for SPASS 3.8
blanchet
parents: 46338
diff changeset
  1686
        unmangled_s ^ "_" ^ string_of_int j ^ "_" ^ string_of_int k ^
6268c5b3efdc generate left-to-right rewrite tag for combinator helpers for SPASS 3.8
blanchet
parents: 46338
diff changeset
  1687
        (if mangled_s = unmangled_s then "" else "_" ^ ascii_of mangled_s) ^
6268c5b3efdc generate left-to-right rewrite tag for combinator helpers for SPASS 3.8
blanchet
parents: 46338
diff changeset
  1688
        (if needs_fairly_sound then typed_helper_suffix
6268c5b3efdc generate left-to-right rewrite tag for combinator helpers for SPASS 3.8
blanchet
parents: 46338
diff changeset
  1689
         else untyped_helper_suffix)
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
  1690
      fun dub_and_inst needs_fairly_sound (th, j) =
43628
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1691
        let val t = prop_of th in
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1692
          if should_specialize_helper type_enc t then
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1693
            map (fn T => specialize_type thy (invert_const unmangled_s, T) t)
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1694
                types
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1695
          else
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1696
            [t]
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1697
        end
46339
6268c5b3efdc generate left-to-right rewrite tag for combinator helpers for SPASS 3.8
blanchet
parents: 46338
diff changeset
  1698
        |> tag_list 1
46393
blanchet
parents: 46392
diff changeset
  1699
        |> map (fn (k, t) =>
blanchet
parents: 46392
diff changeset
  1700
                   ((dub needs_fairly_sound j k, (Global, Spec_Eq)), t))
43860
57ef3cd4126e more refactoring of preprocessing, so as to be able to centralize it
blanchet
parents: 43859
diff changeset
  1701
      val make_facts = map_filter (make_fact ctxt format type_enc false)
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  1702
      val fairly_sound = is_type_enc_fairly_sound type_enc
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1703
    in
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1704
      helper_table
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1705
      |> maps (fn ((helper_s, needs_fairly_sound), ths) =>
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
  1706
                  if helper_s <> unmangled_s orelse
42894
ce269ee43800 further improvements to "poly_{preds,tags}_{bang,query}" -- better solution to the combinator problem + make sure type assumptions can be discharged
blanchet
parents: 42893
diff changeset
  1707
                     (needs_fairly_sound andalso not fairly_sound) then
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1708
                    []
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1709
                  else
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1710
                    ths ~~ (1 upto length ths)
43628
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1711
                    |> maps (dub_and_inst needs_fairly_sound)
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
  1712
                    |> make_facts)
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1713
    end
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1714
  | NONE => []
43858
be41d12de6fa simplify code -- there are no lambdas in helpers anyway
blanchet
parents: 43857
diff changeset
  1715
fun helper_facts_for_sym_table ctxt format type_enc sym_tab =
be41d12de6fa simplify code -- there are no lambdas in helpers anyway
blanchet
parents: 43857
diff changeset
  1716
  Symtab.fold_rev (append o helper_facts_for_sym ctxt format type_enc) sym_tab
be41d12de6fa simplify code -- there are no lambdas in helpers anyway
blanchet
parents: 43857
diff changeset
  1717
                  []
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1718
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1719
(***************************************************************)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1720
(* Type Classes Present in the Axiom or Conjecture Clauses     *)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1721
(***************************************************************)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1722
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1723
fun set_insert (x, s) = Symtab.update (x, ()) s
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1724
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1725
fun add_classes (sorts, cset) = List.foldl set_insert cset (flat sorts)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1726
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1727
(* Remove this trivial type class (FIXME: similar code elsewhere) *)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1728
fun delete_type cset = Symtab.delete_safe (the_single @{sort HOL.type}) cset
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1729
43093
blanchet
parents: 43092
diff changeset
  1730
fun classes_of_terms get_Ts =
43121
5df3777f376d make SML/NJ happier
blanchet
parents: 43120
diff changeset
  1731
  map (map snd o get_Ts)
43093
blanchet
parents: 43092
diff changeset
  1732
  #> List.foldl add_classes Symtab.empty
blanchet
parents: 43092
diff changeset
  1733
  #> delete_type #> Symtab.keys
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1734
44121
44adaa6db327 old term operations are legacy;
wenzelm
parents: 44097
diff changeset
  1735
val tfree_classes_of_terms = classes_of_terms Misc_Legacy.term_tfrees
44adaa6db327 old term operations are legacy;
wenzelm
parents: 44097
diff changeset
  1736
val tvar_classes_of_terms = classes_of_terms Misc_Legacy.term_tvars
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1737
43622
blanchet
parents: 43572
diff changeset
  1738
fun fold_type_constrs f (Type (s, Ts)) x =
blanchet
parents: 43572
diff changeset
  1739
    fold (fold_type_constrs f) Ts (f (s, x))
43189
blanchet
parents: 43188
diff changeset
  1740
  | fold_type_constrs _ _ x = x
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1741
43907
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
  1742
(* Type constructors used to instantiate overloaded constants are the only ones
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
  1743
   needed. *)
43189
blanchet
parents: 43188
diff changeset
  1744
fun add_type_constrs_in_term thy =
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1745
  let
43188
0c36ae874fcc fixed detection of Skolem constants in type construction detection code
blanchet
parents: 43185
diff changeset
  1746
    fun add (Const (@{const_name Meson.skolem}, _) $ _) = I
43181
cd3b7798ecc2 don't stumble on Skolem names
blanchet
parents: 43179
diff changeset
  1747
      | add (t $ u) = add t #> add u
44738
1b333e4173a2 drop more type arguments soundly, when they can be deduced from the arg types
blanchet
parents: 44634
diff changeset
  1748
      | add (Const x) =
1b333e4173a2 drop more type arguments soundly, when they can be deduced from the arg types
blanchet
parents: 44634
diff changeset
  1749
        x |> robust_const_typargs thy |> fold (fold_type_constrs set_insert)
43181
cd3b7798ecc2 don't stumble on Skolem names
blanchet
parents: 43179
diff changeset
  1750
      | add (Abs (_, _, u)) = add u
cd3b7798ecc2 don't stumble on Skolem names
blanchet
parents: 43179
diff changeset
  1751
      | add _ = I
cd3b7798ecc2 don't stumble on Skolem names
blanchet
parents: 43179
diff changeset
  1752
  in add end
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1753
43189
blanchet
parents: 43188
diff changeset
  1754
fun type_constrs_of_terms thy ts =
blanchet
parents: 43188
diff changeset
  1755
  Symtab.keys (fold (add_type_constrs_in_term thy) ts Symtab.empty)
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1756
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1757
fun extract_lambda_def (Const (@{const_name HOL.eq}, _) $ t $ u) =
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1758
    let val (head, args) = strip_comb t in
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1759
      (head |> dest_Const |> fst,
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1760
       fold_rev (fn t as Var ((s, _), T) =>
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1761
                    (fn u => Abs (s, T, abstract_over (t, u)))
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1762
                  | _ => raise Fail "expected Var") args u)
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1763
    end
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1764
  | extract_lambda_def _ = raise Fail "malformed lifted lambda"
45508
b216dc1b3630 started implementing lambda-lifting in Metis
blanchet
parents: 45401
diff changeset
  1765
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1766
fun trans_lams_from_string ctxt type_enc lam_trans =
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1767
  if lam_trans = no_lamsN then
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1768
    rpair []
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1769
  else if lam_trans = hide_lamsN then
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1770
    lift_lams ctxt type_enc ##> K []
46365
547d1a1dcaf6 rename lambda translation schemes
blanchet
parents: 46341
diff changeset
  1771
  else if lam_trans = liftingN orelse lam_trans = lam_liftingN then
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1772
    lift_lams ctxt type_enc
46365
547d1a1dcaf6 rename lambda translation schemes
blanchet
parents: 46341
diff changeset
  1773
  else if lam_trans = combsN then
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1774
    map (introduce_combinators ctxt) #> rpair []
46365
547d1a1dcaf6 rename lambda translation schemes
blanchet
parents: 46341
diff changeset
  1775
  else if lam_trans = combs_and_liftingN then
547d1a1dcaf6 rename lambda translation schemes
blanchet
parents: 46341
diff changeset
  1776
    lift_lams_part_1 ctxt type_enc
547d1a1dcaf6 rename lambda translation schemes
blanchet
parents: 46341
diff changeset
  1777
    ##> maps (fn t => [t, introduce_combinators ctxt (intentionalize_def t)])
46818
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1778
    #> lift_lams_part_2 ctxt
46368
ded0390eceae implemented new lambda translations scheme
blanchet
parents: 46365
diff changeset
  1779
  else if lam_trans = combs_or_liftingN then
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
  1780
    lift_lams_part_1 ctxt type_enc
46368
ded0390eceae implemented new lambda translations scheme
blanchet
parents: 46365
diff changeset
  1781
    ##> map (fn t => case head_of (strip_qnt_body @{const_name All} t) of
ded0390eceae implemented new lambda translations scheme
blanchet
parents: 46365
diff changeset
  1782
                       @{term "op =::bool => bool => bool"} => t
ded0390eceae implemented new lambda translations scheme
blanchet
parents: 46365
diff changeset
  1783
                     | _ => introduce_combinators ctxt (intentionalize_def t))
46818
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1784
    #> lift_lams_part_2 ctxt
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1785
  else if lam_trans = keep_lamsN then
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1786
    map (Envir.eta_contract) #> rpair []
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1787
  else
45519
cd6e78cb6ee8 make metis reconstruction handling more flexible
blanchet
parents: 45516
diff changeset
  1788
    error ("Unknown lambda translation scheme: " ^ quote lam_trans ^ ".")
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1789
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1790
fun translate_formulas ctxt format prem_kind type_enc lam_trans presimp hyp_ts
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1791
                       concl_t facts =
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1792
  let
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1793
    val thy = Proof_Context.theory_of ctxt
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1794
    val trans_lams = trans_lams_from_string ctxt type_enc lam_trans
43861
a08c591bdcdf more refactoring of preprocessing
blanchet
parents: 43860
diff changeset
  1795
    val fact_ts = facts |> map snd
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1796
    (* Remove existing facts from the conjecture, as this can dramatically
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1797
       boost an ATP's performance (for some reason). *)
43192
9c29a00f2970 avoid renumbering hypotheses
blanchet
parents: 43189
diff changeset
  1798
    val hyp_ts =
9c29a00f2970 avoid renumbering hypotheses
blanchet
parents: 43189
diff changeset
  1799
      hyp_ts
9c29a00f2970 avoid renumbering hypotheses
blanchet
parents: 43189
diff changeset
  1800
      |> map (fn t => if member (op aconv) fact_ts t then @{prop True} else t)
43864
58a7b3fdc193 fixed lambda-liftg: must ensure the formulas are in close form
blanchet
parents: 43863
diff changeset
  1801
    val facts = facts |> map (apsnd (pair Axiom))
58a7b3fdc193 fixed lambda-liftg: must ensure the formulas are in close form
blanchet
parents: 43863
diff changeset
  1802
    val conjs =
46385
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
  1803
      map (pair prem_kind) hyp_ts @ [(Conjecture, s_not_trueprop concl_t)]
45168
0e8e662013f9 freeze conjecture schematics before applying lambda-translation, which sometimes calls "close_form" and ruins it for freezing
blanchet
parents: 45167
diff changeset
  1804
      |> map (apsnd freeze_term)
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1805
      |> map2 (pair o rpair (Local, General) o string_of_int)
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1806
              (0 upto length hyp_ts)
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
  1807
    val ((conjs, facts), lam_facts) =
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1808
      (conjs, facts)
46093
blanchet
parents: 46071
diff changeset
  1809
      |> presimp ? pairself (map (apsnd (uncurry (presimp_prop ctxt))))
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1810
      |> (if lam_trans = no_lamsN then
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1811
            rpair []
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1812
          else
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1813
            op @
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1814
            #> preprocess_abstractions_in_terms trans_lams
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1815
            #>> chop (length conjs))
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1816
    val conjs = conjs |> make_conjecture ctxt format type_enc
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1817
    val (fact_names, facts) =
43864
58a7b3fdc193 fixed lambda-liftg: must ensure the formulas are in close form
blanchet
parents: 43863
diff changeset
  1818
      facts
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1819
      |> map_filter (fn (name, (_, t)) =>
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1820
                        make_fact ctxt format type_enc true (name, t)
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1821
                        |> Option.map (pair name))
43861
a08c591bdcdf more refactoring of preprocessing
blanchet
parents: 43860
diff changeset
  1822
      |> ListPair.unzip
46375
d724066ff3d0 reverted e2b1a86d59fc -- broke Metis's lambda-lifting
blanchet
parents: 46371
diff changeset
  1823
    val lifted = lam_facts |> map (extract_lambda_def o snd o snd)
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
  1824
    val lam_facts =
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
  1825
      lam_facts |> map_filter (make_fact ctxt format type_enc true o apsnd snd)
43861
a08c591bdcdf more refactoring of preprocessing
blanchet
parents: 43860
diff changeset
  1826
    val all_ts = concl_t :: hyp_ts @ fact_ts
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1827
    val subs = tfree_classes_of_terms all_ts
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1828
    val supers = tvar_classes_of_terms all_ts
43189
blanchet
parents: 43188
diff changeset
  1829
    val tycons = type_constrs_of_terms thy all_ts
43861
a08c591bdcdf more refactoring of preprocessing
blanchet
parents: 43860
diff changeset
  1830
    val (supers, arity_clauses) =
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  1831
      if level_of_type_enc type_enc = No_Types then ([], [])
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1832
      else make_arity_clauses thy tycons supers
43861
a08c591bdcdf more refactoring of preprocessing
blanchet
parents: 43860
diff changeset
  1833
    val class_rel_clauses = make_class_rel_clauses thy subs supers
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1834
  in
45508
b216dc1b3630 started implementing lambda-lifting in Metis
blanchet
parents: 45401
diff changeset
  1835
    (fact_names |> map single, union (op =) subs supers, conjs,
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
  1836
     facts @ lam_facts, class_rel_clauses, arity_clauses, lifted)
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1837
  end
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1838
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
  1839
val type_guard = `(make_fixed_const NONE) type_guard_name
43130
d73fc2e55308 implemented missing hAPP and ti cases of new path finder
blanchet
parents: 43129
diff changeset
  1840
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1841
fun type_guard_iterm format type_enc T tm =
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  1842
  IApp (IConst (type_guard, T --> @{typ bool}, [T])
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1843
        |> mangle_type_args_in_iterm format type_enc, tm)
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1844
43421
926bfe067a32 fixed soundness bug related to extensionality
blanchet
parents: 43401
diff changeset
  1845
fun is_var_positively_naked_in_term _ (SOME false) _ accum = accum
926bfe067a32 fixed soundness bug related to extensionality
blanchet
parents: 43401
diff changeset
  1846
  | is_var_positively_naked_in_term name _ (ATerm ((s, _), tms)) accum =
43000
bd424c3dde46 cleaner handling of equality and proxies (esp. for THF)
blanchet
parents: 42998
diff changeset
  1847
    accum orelse (is_tptp_equal s andalso member (op =) tms (ATerm (name, [])))
43692
264881a20f50 make SML/NJ happy + tuning
blanchet
parents: 43678
diff changeset
  1848
  | is_var_positively_naked_in_term _ _ _ _ = true
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1849
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1850
fun is_var_ghost_type_arg_in_term thy polym_constrs name pos tm accum =
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1851
  is_var_positively_naked_in_term name pos tm accum orelse
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1852
  let
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1853
    val var = ATerm (name, [])
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1854
    fun is_nasty_in_term (ATerm (_, [])) = false
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1855
      | is_nasty_in_term (ATerm ((s, _), tms)) =
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1856
        let
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1857
          val ary = length tms
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1858
          val polym_constr = member (op =) polym_constrs s
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1859
          val ghosts = ghost_type_args thy s ary
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1860
        in
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1861
          exists (fn (j, tm) =>
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1862
                     if polym_constr then
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1863
                       member (op =) ghosts j andalso
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1864
                       (tm = var orelse is_nasty_in_term tm)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1865
                     else
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1866
                       tm = var andalso member (op =) ghosts j)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1867
                 (0 upto ary - 1 ~~ tms)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1868
          orelse (not polym_constr andalso exists is_nasty_in_term tms)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1869
        end
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1870
      | is_nasty_in_term _ = true
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1871
  in is_nasty_in_term tm end
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1872
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1873
fun should_guard_var_in_formula thy polym_constrs level pos phi (SOME true)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1874
                                name =
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1875
    (case granularity_of_type_level level of
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1876
       All_Vars => true
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1877
     | Positively_Naked_Vars =>
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1878
       formula_fold pos (is_var_positively_naked_in_term name) phi false
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1879
     | Ghost_Type_Arg_Vars =>
46818
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1880
       formula_fold pos (is_var_ghost_type_arg_in_term thy polym_constrs name) phi
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1881
                    false)
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1882
  | should_guard_var_in_formula _ _ _ _ _ _ _ = true
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1883
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1884
fun always_guard_var_in_formula _ _ _ _ _ _ _ = true
42834
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1885
44405
6fe1a89bb69a generate tag equations for existential variables
blanchet
parents: 44404
diff changeset
  1886
fun should_generate_tag_bound_decl _ _ _ (SOME true) _ = false
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  1887
  | should_generate_tag_bound_decl ctxt mono (Tags (_, level)) _ T =
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1888
    granularity_of_type_level level <> All_Vars andalso
44782
blanchet
parents: 44774
diff changeset
  1889
    should_encode_type ctxt mono level T
44405
6fe1a89bb69a generate tag equations for existential variables
blanchet
parents: 44404
diff changeset
  1890
  | should_generate_tag_bound_decl _ _ _ _ _ = false
44404
3111af540141 tuning, plus started implementing tag equation generation for existential variables
blanchet
parents: 44403
diff changeset
  1891
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1892
fun mk_aterm format type_enc name T_args args =
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1893
  ATerm (name, map_filter (ho_term_for_type_arg format type_enc) T_args @ args)
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  1894
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1895
fun do_bound_type ctxt format mono type_enc =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1896
  case type_enc of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1897
    Simple_Types (_, _, level) =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1898
    fused_type ctxt mono level 0
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1899
    #> ho_type_from_typ format type_enc false 0 #> SOME
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1900
  | _ => K NONE
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1901
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1902
fun tag_with_type ctxt format mono type_enc pos T tm =
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1903
  IConst (type_tag, T --> T, [T])
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1904
  |> mangle_type_args_in_iterm format type_enc
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1905
  |> ho_term_from_iterm ctxt format mono type_enc pos
43692
264881a20f50 make SML/NJ happy + tuning
blanchet
parents: 43678
diff changeset
  1906
  |> (fn ATerm (s, tms) => ATerm (s, tms @ [tm])
264881a20f50 make SML/NJ happy + tuning
blanchet
parents: 43678
diff changeset
  1907
       | _ => raise Fail "unexpected lambda-abstraction")
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1908
and ho_term_from_iterm ctxt format mono type_enc =
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1909
  let
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1910
    fun term site u =
42962
3b50fdeb6cfc started adding support for THF output (but no lambdas)
blanchet
parents: 42956
diff changeset
  1911
      let
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1912
        val (head, args) = strip_iterm_comb u
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1913
        val pos =
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1914
          case site of
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1915
            Top_Level pos => pos
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1916
          | Eq_Arg pos => pos
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1917
          | _ => NONE
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1918
        val t =
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1919
          case head of
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1920
            IConst (name as (s, _), _, T_args) =>
46818
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1921
            let val arg_site = if is_tptp_equal s then Eq_Arg pos else Elsewhere in
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1922
              map (term arg_site) args |> mk_aterm format type_enc name T_args
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1923
            end
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1924
          | IVar (name, _) =>
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1925
            map (term Elsewhere) args |> mk_aterm format type_enc name []
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1926
          | IAbs ((name, T), tm) =>
46818
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1927
            if is_type_enc_higher_order type_enc then
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1928
              AAbs ((name, ho_type_from_typ format type_enc true 0 T),
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1929
                    term Elsewhere tm)
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1930
            else
2a28e66e2e4c ensure no abstractions leak through after lambda-lifting (for formulas with higher-order occurrences of quantifiers)
blanchet
parents: 46711
diff changeset
  1931
              raise Fail "unexpected lambda-abstraction"
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1932
          | IApp _ => raise Fail "impossible \"IApp\""
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1933
        val T = ityp_of u
42962
3b50fdeb6cfc started adding support for THF output (but no lambdas)
blanchet
parents: 42956
diff changeset
  1934
      in
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1935
        if should_tag_with_type ctxt mono type_enc site u T then
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1936
          tag_with_type ctxt format mono type_enc pos T t
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1937
        else
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1938
          t
42962
3b50fdeb6cfc started adding support for THF output (but no lambdas)
blanchet
parents: 42956
diff changeset
  1939
      end
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1940
  in term o Top_Level end
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1941
and formula_from_iformula ctxt polym_constrs format mono type_enc
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1942
                          should_guard_var =
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  1943
  let
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1944
    val thy = Proof_Context.theory_of ctxt
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1945
    val level = level_of_type_enc type_enc
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1946
    val do_term = ho_term_from_iterm ctxt format mono type_enc
42878
85ac4c12a4b7 slightly fewer type predicates introduced in the lightweight encoding, based on the observation that only universal positive equalities are dangerous
blanchet
parents: 42855
diff changeset
  1947
    fun do_out_of_bound_type pos phi universal (name, T) =
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1948
      if should_guard_type ctxt mono type_enc
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1949
             (fn () => should_guard_var thy polym_constrs level pos phi
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1950
                                        universal name) T then
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1951
        IVar (name, T)
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  1952
        |> type_guard_iterm format type_enc T
43361
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1953
        |> do_term pos |> AAtom |> SOME
44405
6fe1a89bb69a generate tag equations for existential variables
blanchet
parents: 44404
diff changeset
  1954
      else if should_generate_tag_bound_decl ctxt mono type_enc universal T then
6fe1a89bb69a generate tag equations for existential variables
blanchet
parents: 44404
diff changeset
  1955
        let
6fe1a89bb69a generate tag equations for existential variables
blanchet
parents: 44404
diff changeset
  1956
          val var = ATerm (name, [])
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1957
          val tagged_var = tag_with_type ctxt format mono type_enc pos T var
44405
6fe1a89bb69a generate tag equations for existential variables
blanchet
parents: 44404
diff changeset
  1958
        in SOME (AAtom (ATerm (`I tptp_equal, [tagged_var, var]))) end
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1959
      else
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1960
        NONE
42878
85ac4c12a4b7 slightly fewer type predicates introduced in the lightweight encoding, based on the observation that only universal positive equalities are dangerous
blanchet
parents: 42855
diff changeset
  1961
    fun do_formula pos (AQuant (q, xs, phi)) =
85ac4c12a4b7 slightly fewer type predicates introduced in the lightweight encoding, based on the observation that only universal positive equalities are dangerous
blanchet
parents: 42855
diff changeset
  1962
        let
85ac4c12a4b7 slightly fewer type predicates introduced in the lightweight encoding, based on the observation that only universal positive equalities are dangerous
blanchet
parents: 42855
diff changeset
  1963
          val phi = phi |> do_formula pos
85ac4c12a4b7 slightly fewer type predicates introduced in the lightweight encoding, based on the observation that only universal positive equalities are dangerous
blanchet
parents: 42855
diff changeset
  1964
          val universal = Option.map (q = AExists ? not) pos
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1965
          val do_bound_type = do_bound_type ctxt format mono type_enc
42878
85ac4c12a4b7 slightly fewer type predicates introduced in the lightweight encoding, based on the observation that only universal positive equalities are dangerous
blanchet
parents: 42855
diff changeset
  1966
        in
42834
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1967
          AQuant (q, xs |> map (apsnd (fn NONE => NONE
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1968
                                        | SOME T => do_bound_type T)),
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1969
                  (if q = AForall then mk_ahorn else fold_rev (mk_aconn AAnd))
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1970
                      (map_filter
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1971
                           (fn (_, NONE) => NONE
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1972
                             | (s, SOME T) =>
42878
85ac4c12a4b7 slightly fewer type predicates introduced in the lightweight encoding, based on the observation that only universal positive equalities are dangerous
blanchet
parents: 42855
diff changeset
  1973
                               do_out_of_bound_type pos phi universal (s, T))
85ac4c12a4b7 slightly fewer type predicates introduced in the lightweight encoding, based on the observation that only universal positive equalities are dangerous
blanchet
parents: 42855
diff changeset
  1974
                           xs)
42834
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1975
                      phi)
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1976
        end
42878
85ac4c12a4b7 slightly fewer type predicates introduced in the lightweight encoding, based on the observation that only universal positive equalities are dangerous
blanchet
parents: 42855
diff changeset
  1977
      | do_formula pos (AConn conn) = aconn_map pos do_formula conn
43361
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1978
      | do_formula pos (AAtom tm) = AAtom (do_term pos tm)
43493
bdb11c68f142 generate type predicates for existentials/skolems, otherwise some problems might not be provable
blanchet
parents: 43423
diff changeset
  1979
  in do_formula end
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1980
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1981
(* Each fact is given a unique fact number to avoid name clashes (e.g., because
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1982
   of monomorphization). The TPTP explicitly forbids name clashes, and some of
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1983
   the remote provers might care. *)
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1984
fun formula_line_for_fact ctxt polym_constrs format prefix encode freshen pos
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1985
        mono type_enc rank (j, {name, stature, kind, iformula, atomic_types}) =
43864
58a7b3fdc193 fixed lambda-liftg: must ensure the formulas are in close form
blanchet
parents: 43863
diff changeset
  1986
  (prefix ^ (if freshen then string_of_int j ^ "_" else "") ^ encode name, kind,
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1987
   iformula
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1988
   |> formula_from_iformula ctxt polym_constrs format mono type_enc
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1989
          should_guard_var_in_formula (if pos then SOME true else NONE)
45377
blanchet
parents: 45364
diff changeset
  1990
   |> close_formula_universally
45920
ddbe94f7242c ensure TPTP FOF/TFF/THF formulas are close
blanchet
parents: 45875
diff changeset
  1991
   |> bound_tvars type_enc true atomic_types,
43493
bdb11c68f142 generate type predicates for existentials/skolems, otherwise some problems might not be provable
blanchet
parents: 43423
diff changeset
  1992
   NONE,
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1993
   let val rank = rank j in
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1994
     case snd stature of
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  1995
       Intro => isabelle_info introN rank
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  1996
     | Spec_Intro => isabelle_info spec_introN rank
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  1997
     | Elim => isabelle_info elimN rank
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  1998
     | Simp => isabelle_info simpN rank
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  1999
     | Spec_Eq => isabelle_info spec_eqN rank
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2000
     | _ => isabelle_info "" rank
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2001
   end)
43493
bdb11c68f142 generate type predicates for existentials/skolems, otherwise some problems might not be provable
blanchet
parents: 43423
diff changeset
  2002
  |> Formula
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  2003
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2004
fun formula_line_for_class_rel_clause type_enc
44593
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
  2005
        ({name, subclass, superclass, ...} : class_rel_clause) =
44622
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2006
  let val ty_arg = ATerm (tvar_a_name, []) in
42577
78414ec6fa4e made the format (TFF or FOF) of the TPTP problem a global argument of the problem again and have the ATPs report which formats they support
blanchet
parents: 42576
diff changeset
  2007
    Formula (class_rel_clause_prefix ^ ascii_of name, Axiom,
44622
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2008
             AConn (AImplies,
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2009
                    [type_class_formula type_enc subclass ty_arg,
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2010
                     type_class_formula type_enc superclass ty_arg])
45830
45a5b6edd4f7 added missing quantifier
blanchet
parents: 45829
diff changeset
  2011
             |> mk_aquant AForall
45a5b6edd4f7 added missing quantifier
blanchet
parents: 45829
diff changeset
  2012
                          [(tvar_a_name, atype_of_type_vars type_enc)],
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2013
             NONE, isabelle_info spec_introN helper_rank)
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  2014
  end
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  2015
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2016
fun formula_from_arity_atom type_enc (class, t, args) =
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2017
  ATerm (t, map (fn arg => ATerm (arg, [])) args)
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2018
  |> type_class_formula type_enc class
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  2019
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2020
fun formula_line_for_arity_clause type_enc
45364
d00339ae7fff repaired quantification over type variables for non-TFF1/THF encodings
blanchet
parents: 45316
diff changeset
  2021
        ({name, prem_atoms, concl_atom} : arity_clause) =
43495
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
  2022
  Formula (arity_clause_prefix ^ name, Axiom,
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2023
           mk_ahorn (map (formula_from_arity_atom type_enc) prem_atoms)
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2024
                    (formula_from_arity_atom type_enc concl_atom)
45364
d00339ae7fff repaired quantification over type variables for non-TFF1/THF encodings
blanchet
parents: 45316
diff changeset
  2025
           |> mk_aquant AForall
d00339ae7fff repaired quantification over type variables for non-TFF1/THF encodings
blanchet
parents: 45316
diff changeset
  2026
                  (map (rpair (atype_of_type_vars type_enc)) (#3 concl_atom)),
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2027
           NONE, isabelle_info spec_introN helper_rank)
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  2028
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2029
fun formula_line_for_conjecture ctxt polym_constrs format mono type_enc
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  2030
        ({name, kind, iformula, atomic_types, ...} : translated_formula) =
42577
78414ec6fa4e made the format (TFF or FOF) of the TPTP problem a global argument of the problem again and have the ATPs report which formats they support
blanchet
parents: 42576
diff changeset
  2031
  Formula (conjecture_prefix ^ name, kind,
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  2032
           iformula
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2033
           |> formula_from_iformula ctxt polym_constrs format mono type_enc
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  2034
                  should_guard_var_in_formula (SOME false)
45377
blanchet
parents: 45364
diff changeset
  2035
           |> close_formula_universally
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2036
           |> bound_tvars type_enc true atomic_types, NONE, [])
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  2037
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2038
fun formula_line_for_free_type j phi =
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2039
  Formula (tfree_clause_prefix ^ string_of_int j, Hypothesis, phi, NONE, [])
44626
a40b713232c8 make SML/NJ happy
blanchet
parents: 44625
diff changeset
  2040
fun formula_lines_for_free_types type_enc (facts : translated_formula list) =
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  2041
  let
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2042
    val phis =
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2043
      fold (union (op =)) (map #atomic_types facts) []
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2044
      |> formulas_for_types type_enc add_sorts_on_tfree
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2045
  in map2 formula_line_for_free_type (0 upto length phis - 1) phis end
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  2046
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  2047
(** Symbol declarations **)
42544
75cb06eee990 reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents: 42543
diff changeset
  2048
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
  2049
fun decl_line_for_class order s =
44595
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2050
  let val name as (s, _) = `make_type_class s in
44622
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2051
    Decl (sym_decl_prefix ^ s, name,
45779
eb7b74c7a69b updated TFF1 support
blanchet
parents: 45570
diff changeset
  2052
          if order = First_Order then
eb7b74c7a69b updated TFF1 support
blanchet
parents: 45570
diff changeset
  2053
            ATyAbs ([tvar_a_name],
eb7b74c7a69b updated TFF1 support
blanchet
parents: 45570
diff changeset
  2054
                    if avoid_first_order_ghost_type_vars then
eb7b74c7a69b updated TFF1 support
blanchet
parents: 45570
diff changeset
  2055
                      AFun (a_itself_atype, bool_atype)
eb7b74c7a69b updated TFF1 support
blanchet
parents: 45570
diff changeset
  2056
                    else
eb7b74c7a69b updated TFF1 support
blanchet
parents: 45570
diff changeset
  2057
                      bool_atype)
44622
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2058
          else
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
  2059
            AFun (atype_of_types, bool_atype))
44595
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2060
  end
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2061
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2062
fun decl_lines_for_classes type_enc classes =
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2063
  case type_enc of
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
  2064
    Simple_Types (order, Polymorphic, _) =>
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
  2065
    map (decl_line_for_class order) classes
44595
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2066
  | _ => []
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2067
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2068
fun sym_decl_table_for_facts ctxt format type_enc sym_tab
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2069
                             (conjs, facts, extra_tms) =
42574
blanchet
parents: 42573
diff changeset
  2070
  let
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2071
    fun add_iterm_syms tm =
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  2072
      let val (head, args) = strip_iterm_comb tm in
42574
blanchet
parents: 42573
diff changeset
  2073
        (case head of
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  2074
           IConst ((s, s'), T, T_args) =>
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2075
           let
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2076
             val (pred_sym, in_conj) =
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2077
               case Symtab.lookup sym_tab s of
44853
e3310cdb4e48 made SML/NJ happy
blanchet
parents: 44829
diff changeset
  2078
                 SOME ({pred_sym, in_conj, ...} : sym_info) =>
e3310cdb4e48 made SML/NJ happy
blanchet
parents: 44829
diff changeset
  2079
                 (pred_sym, in_conj)
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2080
               | NONE => (false, false)
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2081
             val decl_sym =
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2082
               (case type_enc of
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2083
                  Guards _ => not pred_sym
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2084
                | _ => true) andalso
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2085
               is_tptp_user_symbol s
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2086
           in
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2087
             if decl_sym then
42576
a8a80a2a34be merge symbol declarations that are type-instances of each other -- useful for type system "Args true" with monomorphization turned off
blanchet
parents: 42575
diff changeset
  2088
               Symtab.map_default (s, [])
42886
208ec29cc013 improved "poly_preds_{bang,query}" by picking up good witnesses for the possible infinity of common type classes and ensuring that "?'a::type" doesn't ruin everything
blanchet
parents: 42885
diff changeset
  2089
                   (insert_type ctxt #3 (s', T_args, T, pred_sym, length args,
208ec29cc013 improved "poly_preds_{bang,query}" by picking up good witnesses for the possible infinity of common type classes and ensuring that "?'a::type" doesn't ruin everything
blanchet
parents: 42885
diff changeset
  2090
                                         in_conj))
42574
blanchet
parents: 42573
diff changeset
  2091
             else
blanchet
parents: 42573
diff changeset
  2092
               I
blanchet
parents: 42573
diff changeset
  2093
           end
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2094
         | IAbs (_, tm) => add_iterm_syms tm
42574
blanchet
parents: 42573
diff changeset
  2095
         | _ => I)
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2096
        #> fold add_iterm_syms args
42574
blanchet
parents: 42573
diff changeset
  2097
      end
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2098
    val add_fact_syms = K add_iterm_syms |> formula_fold NONE |> fact_lift
43966
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2099
    fun add_formula_var_types (AQuant (_, xs, phi)) =
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2100
        fold (fn (_, SOME T) => insert_type ctxt I T | _ => I) xs
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2101
        #> add_formula_var_types phi
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2102
      | add_formula_var_types (AConn (_, phis)) =
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2103
        fold add_formula_var_types phis
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2104
      | add_formula_var_types _ = I
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2105
    fun var_types () =
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2106
      if polymorphism_of_type_enc type_enc = Polymorphic then [tvar_a]
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2107
      else fold (fact_lift add_formula_var_types) (conjs @ facts) []
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2108
    fun add_undefined_const T =
43984
aefc5b046c1e mangle "undefined"
blanchet
parents: 43966
diff changeset
  2109
      let
aefc5b046c1e mangle "undefined"
blanchet
parents: 43966
diff changeset
  2110
        val (s, s') =
44622
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2111
          `(make_fixed_const NONE) @{const_name undefined}
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2112
          |> (case type_arg_policy [] type_enc @{const_name undefined} of
44771
0e5d4388bbac make mangling sound w.r.t. type arguments
blanchet
parents: 44770
diff changeset
  2113
                Mangled_Type_Args => mangled_const_name format type_enc [T]
44001
2b75760fa75e no needless mangling
blanchet
parents: 43997
diff changeset
  2114
              | _ => I)
43984
aefc5b046c1e mangle "undefined"
blanchet
parents: 43966
diff changeset
  2115
      in
aefc5b046c1e mangle "undefined"
blanchet
parents: 43966
diff changeset
  2116
        Symtab.map_default (s, [])
aefc5b046c1e mangle "undefined"
blanchet
parents: 43966
diff changeset
  2117
                           (insert_type ctxt #3 (s', [T], T, false, 0, false))
aefc5b046c1e mangle "undefined"
blanchet
parents: 43966
diff changeset
  2118
      end
44622
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2119
    fun add_TYPE_const () =
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2120
      let val (s, s') = TYPE_name in
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2121
        Symtab.map_default (s, [])
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2122
            (insert_type ctxt #3
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2123
                         (s', [tvar_a], @{typ "'a itself"}, false, 0, false))
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2124
      end
42698
ffd1ae4ff5c6 help SOS by ensuring that typing information is marked as part of the conjecture + be more precise w.r.t. typedefs in monotonicity check
blanchet
parents: 42697
diff changeset
  2125
  in
ffd1ae4ff5c6 help SOS by ensuring that typing information is marked as part of the conjecture + be more precise w.r.t. typedefs in monotonicity check
blanchet
parents: 42697
diff changeset
  2126
    Symtab.empty
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  2127
    |> is_type_enc_fairly_sound type_enc
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2128
       ? (fold (fold add_fact_syms) [conjs, facts]
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2129
          #> fold add_iterm_syms extra_tms
43985
33d8b99531c2 no need for existential witnesses for sorts in TFF and THF formats
blanchet
parents: 43984
diff changeset
  2130
          #> (case type_enc of
45829
0b19934792d2 remove needless declaration in TFF1 problems
blanchet
parents: 45828
diff changeset
  2131
                Simple_Types (First_Order, Polymorphic, _) =>
0b19934792d2 remove needless declaration in TFF1 problems
blanchet
parents: 45828
diff changeset
  2132
                if avoid_first_order_ghost_type_vars then add_TYPE_const ()
0b19934792d2 remove needless declaration in TFF1 problems
blanchet
parents: 45828
diff changeset
  2133
                else I
44786
815afb08c079 tweaking polymorphic TFF and THF output
blanchet
parents: 44785
diff changeset
  2134
              | Simple_Types _ => I
43985
33d8b99531c2 no need for existential witnesses for sorts in TFF and THF formats
blanchet
parents: 43984
diff changeset
  2135
              | _ => fold add_undefined_const (var_types ())))
42698
ffd1ae4ff5c6 help SOS by ensuring that typing information is marked as part of the conjecture + be more precise w.r.t. typedefs in monotonicity check
blanchet
parents: 42697
diff changeset
  2136
  end
42533
dc81fe6b7a87 generate TFF type declarations in typed mode
blanchet
parents: 42531
diff changeset
  2137
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2138
(* We add "bool" in case the helper "True_or_False" is included later. *)
44634
2ac4ff398bc3 make "sound" sound and "unsound" more sound, based on evaluation
blanchet
parents: 44626
diff changeset
  2139
fun default_mono level =
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2140
  {maybe_finite_Ts = [@{typ bool}],
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2141
   surely_finite_Ts = [@{typ bool}],
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2142
   maybe_infinite_Ts = known_infinite_types,
44634
2ac4ff398bc3 make "sound" sound and "unsound" more sound, based on evaluation
blanchet
parents: 44626
diff changeset
  2143
   surely_infinite_Ts =
2ac4ff398bc3 make "sound" sound and "unsound" more sound, based on evaluation
blanchet
parents: 44626
diff changeset
  2144
     case level of
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  2145
       Noninf_Nonmono_Types (Strict, _) => []
44634
2ac4ff398bc3 make "sound" sound and "unsound" more sound, based on evaluation
blanchet
parents: 44626
diff changeset
  2146
     | _ => known_infinite_types,
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2147
   maybe_nonmono_Ts = [@{typ bool}]}
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2148
42685
7a5116bd63b7 documentation tuning
blanchet
parents: 42684
diff changeset
  2149
(* This inference is described in section 2.3 of Claessen et al.'s "Sorting it
7a5116bd63b7 documentation tuning
blanchet
parents: 42684
diff changeset
  2150
   out with monotonicity" paper presented at CADE 2011. *)
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2151
fun add_iterm_mononotonicity_info _ _ (SOME false) _ mono = mono
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2152
  | add_iterm_mononotonicity_info ctxt level _
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2153
        (IApp (IApp (IConst ((s, _), Type (_, [T, _]), _), tm1), tm2))
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2154
        (mono as {maybe_finite_Ts, surely_finite_Ts, maybe_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2155
                  surely_infinite_Ts, maybe_nonmono_Ts}) =
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  2156
    if is_tptp_equal s andalso exists is_maybe_universal_var [tm1, tm2] then
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2157
      case level of
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  2158
        Noninf_Nonmono_Types (strictness, _) =>
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2159
        if exists (type_instance ctxt T) surely_infinite_Ts orelse
44859
237ba63d6041 fixed definition of type intersection (soundness bug)
blanchet
parents: 44853
diff changeset
  2160
           member (type_equiv ctxt) maybe_finite_Ts T then
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2161
          mono
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  2162
        else if is_type_kind_of_surely_infinite ctxt strictness
44500
dbd98b549597 make default unsound mode less unsound
blanchet
parents: 44499
diff changeset
  2163
                                                surely_infinite_Ts T then
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2164
          {maybe_finite_Ts = maybe_finite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2165
           surely_finite_Ts = surely_finite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2166
           maybe_infinite_Ts = maybe_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2167
           surely_infinite_Ts = surely_infinite_Ts |> insert_type ctxt I T,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2168
           maybe_nonmono_Ts = maybe_nonmono_Ts}
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2169
        else
44859
237ba63d6041 fixed definition of type intersection (soundness bug)
blanchet
parents: 44853
diff changeset
  2170
          {maybe_finite_Ts = maybe_finite_Ts |> insert (type_equiv ctxt) T,
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2171
           surely_finite_Ts = surely_finite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2172
           maybe_infinite_Ts = maybe_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2173
           surely_infinite_Ts = surely_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2174
           maybe_nonmono_Ts = maybe_nonmono_Ts |> insert_type ctxt I T}
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2175
      | Fin_Nonmono_Types _ =>
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2176
        if exists (type_instance ctxt T) surely_finite_Ts orelse
44859
237ba63d6041 fixed definition of type intersection (soundness bug)
blanchet
parents: 44853
diff changeset
  2177
           member (type_equiv ctxt) maybe_infinite_Ts T then
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2178
          mono
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2179
        else if is_type_surely_finite ctxt T then
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2180
          {maybe_finite_Ts = maybe_finite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2181
           surely_finite_Ts = surely_finite_Ts |> insert_type ctxt I T,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2182
           maybe_infinite_Ts = maybe_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2183
           surely_infinite_Ts = surely_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2184
           maybe_nonmono_Ts = maybe_nonmono_Ts |> insert_type ctxt I T}
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2185
        else
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2186
          {maybe_finite_Ts = maybe_finite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2187
           surely_finite_Ts = surely_finite_Ts,
44859
237ba63d6041 fixed definition of type intersection (soundness bug)
blanchet
parents: 44853
diff changeset
  2188
           maybe_infinite_Ts = maybe_infinite_Ts |> insert (type_equiv ctxt) T,
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2189
           surely_infinite_Ts = surely_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2190
           maybe_nonmono_Ts = maybe_nonmono_Ts}
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2191
      | _ => mono
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2192
    else
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2193
      mono
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2194
  | add_iterm_mononotonicity_info _ _ _ _ mono = mono
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2195
fun add_fact_mononotonicity_info ctxt level
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2196
        ({kind, iformula, ...} : translated_formula) =
42834
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  2197
  formula_fold (SOME (kind <> Conjecture))
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2198
               (add_iterm_mononotonicity_info ctxt level) iformula
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2199
fun mononotonicity_info_for_facts ctxt type_enc facts =
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  2200
  let val level = level_of_type_enc type_enc in
44634
2ac4ff398bc3 make "sound" sound and "unsound" more sound, based on evaluation
blanchet
parents: 44626
diff changeset
  2201
    default_mono level
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2202
    |> is_type_level_monotonicity_based level
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2203
       ? fold (add_fact_mononotonicity_info ctxt level) facts
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2204
  end
42677
25496cd3c199 monotonic type inference in ATP Sledgehammer problems -- based on Claessen & al.'s CADE 2011 paper, Sect. 2.3.
blanchet
parents: 42675
diff changeset
  2205
44501
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2206
fun add_iformula_monotonic_types ctxt mono type_enc =
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2207
  let
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2208
    val level = level_of_type_enc type_enc
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2209
    val should_encode = should_encode_type ctxt mono level
44504
6f29df8d2007 fixed inverted logic and improve precision when handling monotonic types in polymorphic encodings
blanchet
parents: 44502
diff changeset
  2210
    fun add_type T = not (should_encode T) ? insert_type ctxt I T
44506
7e3913e70846 improve completeness of polymorphic encodings
blanchet
parents: 44505
diff changeset
  2211
    fun add_args (IApp (tm1, tm2)) = add_args tm1 #> add_term tm2
7e3913e70846 improve completeness of polymorphic encodings
blanchet
parents: 44505
diff changeset
  2212
      | add_args _ = I
7e3913e70846 improve completeness of polymorphic encodings
blanchet
parents: 44505
diff changeset
  2213
    and add_term tm = add_type (ityp_of tm) #> add_args tm
44501
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2214
  in formula_fold NONE (K add_term) end
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2215
fun add_fact_monotonic_types ctxt mono type_enc =
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2216
  add_iformula_monotonic_types ctxt mono type_enc |> fact_lift
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2217
fun monotonic_types_for_facts ctxt mono type_enc facts =
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2218
  let val level = level_of_type_enc type_enc in
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2219
    [] |> (polymorphism_of_type_enc type_enc = Polymorphic andalso
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2220
           is_type_level_monotonicity_based level andalso
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2221
           granularity_of_type_level level <> Ghost_Type_Arg_Vars)
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2222
          ? fold (add_fact_monotonic_types ctxt mono type_enc) facts
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2223
  end
44501
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2224
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2225
fun formula_line_for_guards_mono_type ctxt format mono type_enc T =
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2226
  Formula (guards_sym_formula_prefix ^
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2227
           ascii_of (mangled_type format type_enc T),
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2228
           Axiom,
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2229
           IConst (`make_bound_var "X", T, [])
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  2230
           |> type_guard_iterm format type_enc T
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2231
           |> AAtom
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2232
           |> formula_from_iformula ctxt [] format mono type_enc
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  2233
                                    always_guard_var_in_formula (SOME true)
45377
blanchet
parents: 45364
diff changeset
  2234
           |> close_formula_universally
45920
ddbe94f7242c ensure TPTP FOF/TFF/THF formulas are close
blanchet
parents: 45875
diff changeset
  2235
           |> bound_tvars type_enc true (atomic_types_of T),
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2236
           NONE, isabelle_info spec_introN helper_rank)
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2237
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2238
fun formula_line_for_tags_mono_type ctxt format mono type_enc T =
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2239
  let val x_var = ATerm (`make_bound_var "X", []) in
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2240
    Formula (tags_sym_formula_prefix ^
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2241
             ascii_of (mangled_type format type_enc T),
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2242
             Axiom,
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2243
             eq_formula type_enc (atomic_types_of T) [] false
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  2244
                  (tag_with_type ctxt format mono type_enc NONE T x_var) x_var,
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2245
             NONE, isabelle_info spec_eqN helper_rank)
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2246
  end
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2247
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2248
fun problem_lines_for_mono_types ctxt format mono type_enc Ts =
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2249
  case type_enc of
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2250
    Simple_Types _ => []
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2251
  | Guards _ =>
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2252
    map (formula_line_for_guards_mono_type ctxt format mono type_enc) Ts
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2253
  | Tags _ => map (formula_line_for_tags_mono_type ctxt format mono type_enc) Ts
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2254
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2255
fun decl_line_for_sym ctxt format mono type_enc s
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  2256
                      (s', T_args, T, pred_sym, ary, _) =
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  2257
  let
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2258
    val thy = Proof_Context.theory_of ctxt
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2259
    val (T, T_args) =
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2260
      if null T_args then
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2261
        (T, [])
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  2262
      else case unprefix_and_unascii const_prefix s of
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2263
        SOME s' =>
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2264
        let
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2265
          val s' = s' |> invert_const
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2266
          val T = s' |> robust_const_type thy
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2267
        in (T, robust_const_typargs thy (s', T)) end
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
  2268
      | NONE => raise Fail "unexpected type arguments"
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  2269
  in
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2270
    Decl (sym_decl_prefix ^ s, (s, s'),
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2271
          T |> fused_type ctxt mono (level_of_type_enc type_enc) ary
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2272
            |> ho_type_from_typ format type_enc pred_sym ary
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2273
            |> not (null T_args)
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2274
               ? curry ATyAbs (map (tvar_name o fst o dest_TVar) T_args))
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  2275
  end
42579
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2276
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2277
fun honor_conj_sym_kind in_conj conj_sym_kind =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2278
  if in_conj then (conj_sym_kind, conj_sym_kind = Conjecture ? mk_anot)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2279
  else (Axiom, I)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2280
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2281
fun formula_line_for_guards_sym_decl ctxt format conj_sym_kind mono type_enc n s
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2282
                                     j (s', T_args, T, _, ary, in_conj) =
42579
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2283
  let
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2284
    val thy = Proof_Context.theory_of ctxt
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2285
    val (kind, maybe_negate) = honor_conj_sym_kind in_conj conj_sym_kind
42753
c9552e617acc drop some type arguments to constants in unsound type systems + remove a few type systems that make no sense from the circulation
blanchet
parents: 42750
diff changeset
  2286
    val (arg_Ts, res_T) = chop_fun ary T
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2287
    val bound_names = 1 upto ary |> map (`I o make_bound_var o string_of_int)
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2288
    val bounds =
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  2289
      bound_names ~~ arg_Ts |> map (fn (name, T) => IConst (name, T, []))
42579
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2290
    val bound_Ts =
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2291
      if exists (curry (op =) dummyT) T_args then
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2292
        case level_of_type_enc type_enc of
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2293
          All_Types => map SOME arg_Ts
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2294
        | level =>
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2295
          if granularity_of_type_level level = Ghost_Type_Arg_Vars then
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2296
            let val ghosts = ghost_type_args thy s ary in
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2297
              map2 (fn j => if member (op =) ghosts j then SOME else K NONE)
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2298
                   (0 upto ary - 1) arg_Ts
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2299
            end
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2300
          else
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2301
            replicate ary NONE
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2302
      else
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2303
        replicate ary NONE
42579
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2304
  in
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
  2305
    Formula (guards_sym_formula_prefix ^ s ^
42709
e7af132d48fe allow each prover to specify its own formula kind for symbols occurring in the conjecture
blanchet
parents: 42701
diff changeset
  2306
             (if n > 1 then "_" ^ string_of_int j else ""), kind,
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  2307
             IConst ((s, s'), T, T_args)
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  2308
             |> fold (curry (IApp o swap)) bounds
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  2309
             |> type_guard_iterm format type_enc res_T
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
  2310
             |> AAtom |> mk_aquant AForall (bound_names ~~ bound_Ts)
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2311
             |> formula_from_iformula ctxt [] format mono type_enc
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  2312
                                      always_guard_var_in_formula (SOME true)
45377
blanchet
parents: 45364
diff changeset
  2313
             |> close_formula_universally
45920
ddbe94f7242c ensure TPTP FOF/TFF/THF formulas are close
blanchet
parents: 45875
diff changeset
  2314
             |> bound_tvars type_enc (n > 1) (atomic_types_of T)
42709
e7af132d48fe allow each prover to specify its own formula kind for symbols occurring in the conjecture
blanchet
parents: 42701
diff changeset
  2315
             |> maybe_negate,
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2316
             NONE, isabelle_info spec_introN helper_rank)
42579
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2317
  end
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2318
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2319
fun formula_lines_for_tags_sym_decl ctxt format conj_sym_kind mono type_enc n s
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2320
        (j, (s', T_args, T, pred_sym, ary, in_conj)) =
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2321
  let
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2322
    val thy = Proof_Context.theory_of ctxt
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2323
    val level = level_of_type_enc type_enc
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2324
    val grain = granularity_of_type_level level
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2325
    val ident_base =
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2326
      tags_sym_formula_prefix ^ s ^
43125
ddf63baabdec distinguish different kinds of typing informations in the fact name
blanchet
parents: 43121
diff changeset
  2327
      (if n > 1 then "_" ^ string_of_int j else "")
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2328
    val (kind, maybe_negate) = honor_conj_sym_kind in_conj conj_sym_kind
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2329
    val (arg_Ts, res_T) = chop_fun ary T
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2330
    val bound_names = 1 upto ary |> map (`I o make_bound_var o string_of_int)
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2331
    val bounds = bound_names |> map (fn name => ATerm (name, []))
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  2332
    val cst = mk_aterm format type_enc (s, s') T_args
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2333
    val eq = maybe_negate oo eq_formula type_enc (atomic_types_of T) [] pred_sym
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2334
    val should_encode = should_encode_type ctxt mono level
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  2335
    val tag_with = tag_with_type ctxt format mono type_enc NONE
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2336
    val add_formula_for_res =
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2337
      if should_encode res_T then
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2338
        let
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2339
          val tagged_bounds =
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2340
            if grain = Ghost_Type_Arg_Vars then
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2341
              let val ghosts = ghost_type_args thy s ary in
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2342
                map2 (fn (j, arg_T) => member (op =) ghosts j ? tag_with arg_T)
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2343
                     (0 upto ary - 1 ~~ arg_Ts) bounds
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2344
              end
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2345
            else
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2346
              bounds
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2347
        in
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2348
          cons (Formula (ident_base ^ "_res", kind,
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2349
                         eq (tag_with res_T (cst bounds)) (cst tagged_bounds),
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2350
                         NONE, isabelle_info spec_eqN helper_rank))
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2351
        end
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2352
      else
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2353
        I
47046
62ca06cc5a99 remove two options that were found to play hardly any role
blanchet
parents: 47039
diff changeset
  2354
  in [] |> not pred_sym ? add_formula_for_res end
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2355
42836
9adf6b3965b3 code cleanup, better handling of corner cases
blanchet
parents: 42834
diff changeset
  2356
fun result_type_of_decl (_, _, T, _, ary, _) = chop_fun ary T |> snd
9adf6b3965b3 code cleanup, better handling of corner cases
blanchet
parents: 42834
diff changeset
  2357
45780
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2358
fun rationalize_decls ctxt (decls as decl :: (decls' as _ :: _)) =
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2359
    let
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2360
      val T = result_type_of_decl decl
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2361
              |> map_type_tvar (fn (z, _) => TVar (z, HOLogic.typeS))
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2362
    in
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2363
      if forall (type_generalization ctxt T o result_type_of_decl) decls' then
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2364
        [decl]
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2365
      else
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2366
        decls
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2367
    end
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2368
  | rationalize_decls _ decls = decls
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2369
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2370
fun problem_lines_for_sym_decls ctxt format conj_sym_kind mono type_enc
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2371
                                (s, decls) =
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  2372
  case type_enc of
45831
8f8fce7bd32b avoid multiple type decls in TFF (improves on cef82dc1462d)
blanchet
parents: 45830
diff changeset
  2373
    Simple_Types _ => [decl_line_for_sym ctxt format mono type_enc s (hd decls)]
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2374
  | Guards (_, level) =>
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2375
    let
45780
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2376
      val decls = decls |> rationalize_decls ctxt
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2377
      val n = length decls
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2378
      val decls =
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2379
        decls |> filter (should_encode_type ctxt mono level
43401
e93dfcb53535 fixed soundness bug made more visible by previous change
blanchet
parents: 43399
diff changeset
  2380
                         o result_type_of_decl)
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2381
    in
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2382
      (0 upto length decls - 1, decls)
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2383
      |-> map2 (formula_line_for_guards_sym_decl ctxt format conj_sym_kind mono
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2384
                                                 type_enc n s)
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2385
    end
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2386
  | Tags (_, level) =>
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2387
    if granularity_of_type_level level = All_Vars then
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2388
      []
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2389
    else
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2390
      let val n = length decls in
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2391
        (0 upto n - 1 ~~ decls)
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2392
        |> maps (formula_lines_for_tags_sym_decl ctxt format conj_sym_kind mono
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2393
                                                 type_enc n s)
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2394
      end
42579
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2395
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2396
fun problem_lines_for_sym_decl_table ctxt format conj_sym_kind mono type_enc
44501
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2397
                                     mono_Ts sym_decl_tab =
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2398
  let
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2399
    val syms = sym_decl_tab |> Symtab.dest |> sort_wrt fst
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2400
    val mono_lines =
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2401
      problem_lines_for_mono_types ctxt format mono type_enc mono_Ts
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2402
    val decl_lines =
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2403
      fold_rev (append o problem_lines_for_sym_decls ctxt format conj_sym_kind
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2404
                             mono type_enc)
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2405
               syms []
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2406
  in mono_lines @ decl_lines end
42543
f9d402d144d4 declare TFF types so that SNARK can be used with types
blanchet
parents: 42542
diff changeset
  2407
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2408
fun pair_append (xs1, xs2) (ys1, ys2) = (xs1 @ ys1, xs2 @ ys2)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2409
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2410
fun do_uncurried_alias_lines_for_sym ctxt monom_constrs format conj_sym_kind
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2411
        mono type_enc sym_tab0 sym_tab base_s0 types in_conj =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2412
  let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2413
    fun do_alias ary =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2414
      let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2415
        val thy = Proof_Context.theory_of ctxt
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2416
        val (kind, maybe_negate) = honor_conj_sym_kind in_conj conj_sym_kind
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2417
        val base_name = base_s0 |> `(make_fixed_const (SOME format))
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2418
        val T = case types of [T] => T | _ => robust_const_type thy base_s0
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2419
        val T_args = robust_const_typargs thy (base_s0, T)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2420
        val (base_name as (base_s, _), T_args) =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2421
          mangle_type_args_in_const format type_enc base_name T_args
46402
ef8d65f64f77 change 9ce354a77908 wasn't quite right -- here's an improvement
blanchet
parents: 46400
diff changeset
  2422
        val base_ary = min_ary_of sym_tab0 base_s
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2423
        fun do_const name = IConst (name, T, T_args)
46437
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2424
        val filter_ty_args =
46410
78ff6a886b50 made sure to filter type args also for "uncurried alias" equations
blanchet
parents: 46409
diff changeset
  2425
          filter_type_args_in_iterm thy monom_constrs type_enc
46437
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2426
        val ho_term_of =
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2427
          ho_term_from_iterm ctxt format mono type_enc (SOME true)
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2428
        val name1 as (s1, _) =
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2429
          base_name |> ary - 1 > base_ary ? aliased_uncurried (ary - 1)
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2430
        val name2 as (s2, _) = base_name |> aliased_uncurried ary
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2431
        val (arg_Ts, _) = chop_fun ary T
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2432
        val bound_names =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2433
          1 upto ary |> map (`I o make_bound_var o string_of_int)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2434
        val bounds = bound_names ~~ arg_Ts
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2435
        val (first_bounds, last_bound) =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2436
          bounds |> map (fn (name, T) => IConst (name, T, [])) |> split_last
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2437
        val tm1 =
46410
78ff6a886b50 made sure to filter type args also for "uncurried alias" equations
blanchet
parents: 46409
diff changeset
  2438
          mk_app_op format type_enc (list_app (do_const name1) first_bounds)
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2439
                    last_bound
46437
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2440
          |> filter_ty_args
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2441
        val tm2 =
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2442
          list_app (do_const name2) (first_bounds @ [last_bound])
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2443
          |> filter_ty_args
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2444
        val do_bound_type = do_bound_type ctxt format mono type_enc
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2445
        val eq =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2446
          eq_formula type_enc (atomic_types_of T)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2447
                     (map (apsnd do_bound_type) bounds) false
46437
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2448
                     (ho_term_of tm1) (ho_term_of tm2)
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2449
      in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2450
        ([tm1, tm2],
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2451
         [Formula (uncurried_alias_eq_prefix ^ s2, kind, eq |> maybe_negate,
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2452
                   NONE, isabelle_info spec_eqN helper_rank)])
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2453
        |> (if ary - 1 = base_ary orelse Symtab.defined sym_tab s1 then I
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2454
            else pair_append (do_alias (ary - 1)))
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2455
      end
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2456
  in do_alias end
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2457
fun uncurried_alias_lines_for_sym ctxt monom_constrs format conj_sym_kind mono
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2458
        type_enc sym_tab0 sym_tab
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2459
        (s, {min_ary, types, in_conj, ...} : sym_info) =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2460
  case unprefix_and_unascii const_prefix s of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2461
    SOME mangled_s =>
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2462
    if String.isSubstring uncurried_alias_sep mangled_s then
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2463
      let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2464
        val base_s0 = mangled_s |> unmangled_const_name |> hd |> invert_const
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2465
      in
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2466
        do_uncurried_alias_lines_for_sym ctxt monom_constrs format conj_sym_kind
46402
ef8d65f64f77 change 9ce354a77908 wasn't quite right -- here's an improvement
blanchet
parents: 46400
diff changeset
  2467
            mono type_enc sym_tab0 sym_tab base_s0 types in_conj min_ary
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2468
      end
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2469
    else
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2470
      ([], [])
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2471
  | NONE => ([], [])
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2472
fun uncurried_alias_lines_for_sym_table ctxt monom_constrs format conj_sym_kind
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2473
        mono type_enc uncurried_aliases sym_tab0 sym_tab =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2474
  ([], [])
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2475
  |> uncurried_aliases
46402
ef8d65f64f77 change 9ce354a77908 wasn't quite right -- here's an improvement
blanchet
parents: 46400
diff changeset
  2476
     ? Symtab.fold_rev
ef8d65f64f77 change 9ce354a77908 wasn't quite right -- here's an improvement
blanchet
parents: 46400
diff changeset
  2477
           (pair_append
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2478
            o uncurried_alias_lines_for_sym ctxt monom_constrs format
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2479
                  conj_sym_kind mono type_enc sym_tab0 sym_tab) sym_tab
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2480
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2481
val implicit_declsN = "Should-be-implicit typings"
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2482
val explicit_declsN = "Explicit typings"
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2483
val uncurried_alias_eqsN = "Uncurried aliases"
41157
blanchet
parents: 41150
diff changeset
  2484
val factsN = "Relevant facts"
blanchet
parents: 41150
diff changeset
  2485
val class_relsN = "Class relationships"
42543
f9d402d144d4 declare TFF types so that SNARK can be used with types
blanchet
parents: 42542
diff changeset
  2486
val aritiesN = "Arities"
41157
blanchet
parents: 41150
diff changeset
  2487
val helpersN = "Helper facts"
blanchet
parents: 41150
diff changeset
  2488
val conjsN = "Conjectures"
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2489
val free_typesN = "Type variables"
41157
blanchet
parents: 41150
diff changeset
  2490
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2491
(* TFF allows implicit declarations of types, function symbols, and predicate
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2492
   symbols (with "$i" as the type of individuals), but some provers (e.g.,
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2493
   SNARK) require explicit declarations. The situation is similar for THF. *)
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2494
45875
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2495
fun default_type type_enc pred_sym s =
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2496
  let
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2497
    val ind =
45875
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2498
      case type_enc of
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2499
        Simple_Types _ =>
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2500
        if String.isPrefix type_const_prefix s then atype_of_types
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2501
        else individual_atype
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2502
      | _ => individual_atype
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2503
    fun typ 0 = if pred_sym then bool_atype else ind
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2504
      | typ ary = AFun (ind, typ (ary - 1))
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2505
  in typ end
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2506
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2507
fun nary_type_constr_type n =
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2508
  funpow n (curry AFun atype_of_types) atype_of_types
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2509
45875
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2510
fun undeclared_syms_in_problem type_enc problem =
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2511
  let
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2512
    val declared = declared_syms_in_problem problem
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2513
    fun do_sym (name as (s, _)) ty =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2514
      if is_tptp_user_symbol s andalso not (member (op =) declared name) then
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2515
        AList.default (op =) (name, ty)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2516
      else
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2517
        I
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2518
    fun do_type (AType (name, tys)) =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2519
        do_sym name (fn () => nary_type_constr_type (length tys))
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2520
        #> fold do_type tys
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2521
      | do_type (AFun (ty1, ty2)) = do_type ty1 #> do_type ty2
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2522
      | do_type (ATyAbs (_, ty)) = do_type ty
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2523
    fun do_term pred_sym (ATerm (name as (s, _), tms)) =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2524
        do_sym name (fn _ => default_type type_enc pred_sym s (length tms))
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2525
        #> fold (do_term false) tms
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2526
      | do_term _ (AAbs ((_, ty), tm)) = do_type ty #> do_term false tm
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2527
    fun do_formula (AQuant (_, xs, phi)) =
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2528
        fold do_type (map_filter snd xs) #> do_formula phi
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2529
      | do_formula (AConn (_, phis)) = fold do_formula phis
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2530
      | do_formula (AAtom tm) = do_term true tm
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2531
    fun do_problem_line (Decl (_, _, ty)) = do_type ty
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2532
      | do_problem_line (Formula (_, _, phi, _, _)) = do_formula phi
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2533
  in
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2534
    fold (fold do_problem_line o snd) problem []
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2535
    |> filter_out (is_built_in_tptp_symbol o fst o fst)
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2536
  end
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2537
45875
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2538
fun declare_undeclared_syms_in_atp_problem type_enc problem =
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2539
  let
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2540
    val decls =
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2541
      problem
45875
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2542
      |> undeclared_syms_in_problem type_enc
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2543
      |> sort_wrt (fst o fst)
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2544
      |> map (fn (x as (s, _), ty) => Decl (type_decl_prefix ^ s, x, ty ()))
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2545
  in (implicit_declsN, decls) :: problem end
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2546
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2547
fun exists_subdtype P =
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2548
  let
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2549
    fun ex U = P U orelse
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2550
      (case U of Datatype.DtType (_, Us) => exists ex Us | _ => false)
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2551
  in ex end
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2552
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2553
fun is_poly_constr (_, Us) =
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2554
  exists (exists_subdtype (fn Datatype.DtTFree _ => true | _ => false)) Us
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2555
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2556
fun all_constrs_of_polymorphic_datatypes thy =
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2557
  Symtab.fold (snd
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2558
               #> #descr
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2559
               #> maps (snd #> #3)
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2560
               #> (fn cs => exists is_poly_constr cs ? append cs))
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2561
              (Datatype.get_all thy) []
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2562
  |> List.partition is_poly_constr
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2563
  |> pairself (map fst)
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2564
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2565
val app_op_and_predicator_threshold = 50
43259
30c141dc22d6 killed "explicit_apply" option in Sledgehammer -- the "smart" default is about as lightweight as "false" and just as complete as "true"
blanchet
parents: 43258
diff changeset
  2566
44397
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
  2567
fun prepare_atp_problem ctxt format conj_sym_kind prem_kind type_enc exporter
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2568
                        lam_trans uncurried_aliases readable_names preproc
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2569
                        hyp_ts concl_t facts =
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2570
  let
44774
72785558a6ff separate mangling, which can (and should) be done before the formulas are first-orderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents: 44773
diff changeset
  2571
    val thy = Proof_Context.theory_of ctxt
44416
cabd06b69c18 added formats to the slice and use TFF for remote Vampire
blanchet
parents: 44410
diff changeset
  2572
    val type_enc = type_enc |> adjust_type_enc format
46389
blanchet
parents: 46385
diff changeset
  2573
    (* Forcing explicit applications is expensive for polymorphic encodings,
blanchet
parents: 46385
diff changeset
  2574
       because it takes only one existential variable ranging over "'a => 'b" to
blanchet
parents: 46385
diff changeset
  2575
       ruin everything. Hence we do it only if there are few facts (which is
blanchet
parents: 46385
diff changeset
  2576
       normally the case for "metis" and the minimizer). *)
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2577
    val app_op_level =
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2578
      if length facts > app_op_and_predicator_threshold then
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2579
        if polymorphism_of_type_enc type_enc = Polymorphic then
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2580
          Min_App_Op
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2581
        else
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2582
          Sufficient_App_Op
46370
b3e53dd6f10a new SPASS setup
blanchet
parents: 46368
diff changeset
  2583
      else
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2584
        Sufficient_App_Op_And_Predicator
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  2585
    val lam_trans =
45520
2b1dde0b1c30 thread in additional options to minimizer
blanchet
parents: 45519
diff changeset
  2586
      if lam_trans = keep_lamsN andalso
2b1dde0b1c30 thread in additional options to minimizer
blanchet
parents: 45519
diff changeset
  2587
         not (is_type_enc_higher_order type_enc) then
45519
cd6e78cb6ee8 make metis reconstruction handling more flexible
blanchet
parents: 45516
diff changeset
  2588
        error ("Lambda translation scheme incompatible with first-order \
44088
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
  2589
               \encoding.")
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
  2590
      else
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  2591
        lam_trans
45508
b216dc1b3630 started implementing lambda-lifting in Metis
blanchet
parents: 45401
diff changeset
  2592
    val (fact_names, classes, conjs, facts, class_rel_clauses, arity_clauses,
b216dc1b3630 started implementing lambda-lifting in Metis
blanchet
parents: 45401
diff changeset
  2593
         lifted) =
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  2594
      translate_formulas ctxt format prem_kind type_enc lam_trans preproc hyp_ts
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  2595
                         concl_t facts
46402
ef8d65f64f77 change 9ce354a77908 wasn't quite right -- here's an improvement
blanchet
parents: 46400
diff changeset
  2596
    val sym_tab0 = sym_table_for_facts ctxt type_enc app_op_level conjs facts
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2597
    val mono = conjs @ facts |> mononotonicity_info_for_facts ctxt type_enc
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2598
    val (polym_constrs, monom_constrs) =
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2599
      all_constrs_of_polymorphic_datatypes thy
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2600
      |>> map (make_fixed_const (SOME format))
46400
9ce354a77908 don't introduce new symbols in helpers -- makes problems unprovable
blanchet
parents: 46399
diff changeset
  2601
    fun firstorderize in_helper =
46402
ef8d65f64f77 change 9ce354a77908 wasn't quite right -- here's an improvement
blanchet
parents: 46400
diff changeset
  2602
      firstorderize_fact thy monom_constrs format type_enc sym_tab0
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2603
                         (uncurried_aliases andalso not in_helper)
46400
9ce354a77908 don't introduce new symbols in helpers -- makes problems unprovable
blanchet
parents: 46399
diff changeset
  2604
    val (conjs, facts) = (conjs, facts) |> pairself (map (firstorderize false))
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2605
    val sym_tab = sym_table_for_facts ctxt type_enc Min_App_Op conjs facts
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  2606
    val helpers =
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  2607
      sym_tab |> helper_facts_for_sym_table ctxt format type_enc
46400
9ce354a77908 don't introduce new symbols in helpers -- makes problems unprovable
blanchet
parents: 46399
diff changeset
  2608
              |> map (firstorderize true)
44501
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2609
    val mono_Ts =
45937
blanchet
parents: 45920
diff changeset
  2610
      helpers @ conjs @ facts |> monotonic_types_for_facts ctxt mono type_enc
44595
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2611
    val class_decl_lines = decl_lines_for_classes type_enc classes
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2612
    val (uncurried_alias_eq_tms, uncurried_alias_eq_lines) =
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2613
      uncurried_alias_lines_for_sym_table ctxt monom_constrs format
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2614
          conj_sym_kind mono type_enc uncurried_aliases sym_tab0 sym_tab
42680
b6c27cf04fe9 exploit inferred monotonicity
blanchet
parents: 42677
diff changeset
  2615
    val sym_decl_lines =
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2616
      (conjs, helpers @ facts, uncurried_alias_eq_tms)
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  2617
      |> sym_decl_table_for_facts ctxt format type_enc sym_tab
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2618
      |> problem_lines_for_sym_decl_table ctxt format conj_sym_kind mono
44501
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2619
                                               type_enc mono_Ts
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2620
    val num_facts = length facts
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2621
    val fact_lines =
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2622
      map (formula_line_for_fact ctxt polym_constrs format fact_prefix
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2623
               ascii_of (not exporter) (not exporter) mono type_enc
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2624
               (rank_of_fact_num num_facts))
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2625
          (0 upto num_facts - 1 ~~ facts)
42881
dbdfe2d5b6ab automatically use "metisFT" when typed helpers are necessary
blanchet
parents: 42879
diff changeset
  2626
    val helper_lines =
42956
9aeb0f6ad971 filter Waldmeister facts better -- and don't encode type classes as predicates, since it doesn't like conditional equations
blanchet
parents: 42951
diff changeset
  2627
      0 upto length helpers - 1 ~~ helpers
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2628
      |> map (formula_line_for_fact ctxt polym_constrs format helper_prefix I
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2629
                                    false true mono type_enc (K default_rank))
42522
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
  2630
    (* Reordering these might confuse the proof reconstruction code or the SPASS
43039
b967219cec78 tuned comments
blanchet
parents: 43017
diff changeset
  2631
       FLOTTER hack. *)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2632
    val problem =
44595
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2633
      [(explicit_declsN, class_decl_lines @ sym_decl_lines),
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2634
       (uncurried_alias_eqsN, uncurried_alias_eq_lines),
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2635
       (factsN, fact_lines),
44593
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
  2636
       (class_relsN,
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2637
        map (formula_line_for_class_rel_clause type_enc) class_rel_clauses),
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2638
       (aritiesN, map (formula_line_for_arity_clause type_enc) arity_clauses),
42881
dbdfe2d5b6ab automatically use "metisFT" when typed helpers are necessary
blanchet
parents: 42879
diff changeset
  2639
       (helpersN, helper_lines),
46643
a88bccd2b567 added support for Alt-Ergo through Why3 (mostly for experimental purposes, e.g. polymorphism vs. monomorphization)
blanchet
parents: 46642
diff changeset
  2640
       (free_typesN, formula_lines_for_free_types type_enc (facts @ conjs)),
42962
3b50fdeb6cfc started adding support for THF output (but no lambdas)
blanchet
parents: 42956
diff changeset
  2641
       (conjsN,
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2642
        map (formula_line_for_conjecture ctxt polym_constrs format mono
46643
a88bccd2b567 added support for Alt-Ergo through Why3 (mostly for experimental purposes, e.g. polymorphism vs. monomorphization)
blanchet
parents: 46642
diff changeset
  2643
                                         type_enc) conjs)]
42543
f9d402d144d4 declare TFF types so that SNARK can be used with types
blanchet
parents: 42542
diff changeset
  2644
    val problem =
42561
23ddc4e3d19c have properly type-instantiated helper facts (combinators and If)
blanchet
parents: 42560
diff changeset
  2645
      problem
43092
93ec303e1917 more work on new metis that exploits the powerful new type encodings
blanchet
parents: 43086
diff changeset
  2646
      |> (case format of
93ec303e1917 more work on new metis that exploits the powerful new type encodings
blanchet
parents: 43086
diff changeset
  2647
            CNF => ensure_cnf_problem
93ec303e1917 more work on new metis that exploits the powerful new type encodings
blanchet
parents: 43086
diff changeset
  2648
          | CNF_UEQ => filter_cnf_ueq_problem
44589
0a1dfc6365e9 first step towards polymorphic TFF + changed defaults for Vampire
blanchet
parents: 44587
diff changeset
  2649
          | FOF => I
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
  2650
          | TFF (_, TPTP_Implicit) => I
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
  2651
          | THF (_, TPTP_Implicit, _) => I
45875
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2652
          | _ => declare_undeclared_syms_in_atp_problem type_enc)
45939
711fec5b4f61 don't try to avoid SPASS keywords; instead, just suffix an underscore to all generated identifiers
blanchet
parents: 45937
diff changeset
  2653
    val (problem, pool) = problem |> nice_atp_problem readable_names format
44772
blanchet
parents: 44771
diff changeset
  2654
    fun add_sym_ary (s, {min_ary, ...} : sym_info) =
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  2655
      min_ary > 0 ? Symtab.insert (op =) (s, min_ary)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2656
  in
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2657
    (problem,
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2658
     case pool of SOME the_pool => snd the_pool | NONE => Symtab.empty,
42755
4603154a3018 robustly detect how many type args were passed to the ATP, even if some of them were omitted
blanchet
parents: 42754
diff changeset
  2659
     fact_names |> Vector.fromList,
45508
b216dc1b3630 started implementing lambda-lifting in Metis
blanchet
parents: 45401
diff changeset
  2660
     lifted,
44772
blanchet
parents: 44771
diff changeset
  2661
     Symtab.empty |> Symtab.fold add_sym_ary sym_tab)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2662
  end
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2663
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2664
(* FUDGE *)
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2665
val conj_weight = 0.0
41770
a710e96583d5 adjust fudge factors
blanchet
parents: 41769
diff changeset
  2666
val hyp_weight = 0.1
a710e96583d5 adjust fudge factors
blanchet
parents: 41769
diff changeset
  2667
val fact_min_weight = 0.2
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2668
val fact_max_weight = 1.0
42608
6ef61823b63b make sure E type information constants are given a weight, even if they don't appear anywhere else
blanchet
parents: 42592
diff changeset
  2669
val type_info_default_weight = 0.8
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2670
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2671
(* Weights are from 0.0 (most important) to 1.0 (least important). *)
47030
7e80e14247fc internal renamings
blanchet
parents: 46818
diff changeset
  2672
fun atp_problem_selection_weights problem =
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2673
  let
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2674
    fun add_term_weights weight (ATerm (s, tms)) =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2675
        is_tptp_user_symbol s ? Symtab.default (s, weight)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2676
        #> fold (add_term_weights weight) tms
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2677
      | add_term_weights weight (AAbs (_, tm)) = add_term_weights weight tm
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2678
    fun add_line_weights weight (Formula (_, _, phi, _, _)) =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2679
        formula_fold NONE (K (add_term_weights weight)) phi
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2680
      | add_line_weights _ _ = I
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2681
    fun add_conjectures_weights [] = I
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2682
      | add_conjectures_weights conjs =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2683
        let val (hyps, conj) = split_last conjs in
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2684
          add_line_weights conj_weight conj
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2685
          #> fold (add_line_weights hyp_weight) hyps
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2686
        end
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2687
    fun add_facts_weights facts =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2688
      let
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2689
        val num_facts = length facts
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2690
        fun weight_of j =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2691
          fact_min_weight + (fact_max_weight - fact_min_weight) * Real.fromInt j
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2692
                            / Real.fromInt num_facts
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2693
      in
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2694
        map weight_of (0 upto num_facts - 1) ~~ facts
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2695
        |> fold (uncurry add_line_weights)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2696
      end
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2697
    val get = these o AList.lookup (op =) problem
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2698
  in
42608
6ef61823b63b make sure E type information constants are given a weight, even if they don't appear anywhere else
blanchet
parents: 42592
diff changeset
  2699
    Symtab.empty
6ef61823b63b make sure E type information constants are given a weight, even if they don't appear anywhere else
blanchet
parents: 42592
diff changeset
  2700
    |> add_conjectures_weights (get free_typesN @ get conjsN)
6ef61823b63b make sure E type information constants are given a weight, even if they don't appear anywhere else
blanchet
parents: 42592
diff changeset
  2701
    |> add_facts_weights (get factsN)
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2702
    |> fold (fold (add_line_weights type_info_default_weight) o get)
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2703
            [explicit_declsN, class_relsN, aritiesN]
42608
6ef61823b63b make sure E type information constants are given a weight, even if they don't appear anywhere else
blanchet
parents: 42592
diff changeset
  2704
    |> Symtab.dest
6ef61823b63b make sure E type information constants are given a weight, even if they don't appear anywhere else
blanchet
parents: 42592
diff changeset
  2705
    |> sort (prod_ord Real.compare string_ord o pairself swap)
6ef61823b63b make sure E type information constants are given a weight, even if they don't appear anywhere else
blanchet
parents: 42592
diff changeset
  2706
  end
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2707
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2708
(* Ugly hack: may make innocent victims (collateral damage) *)
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2709
fun may_be_app s args = String.isPrefix app_op_name s andalso length args = 2
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2710
fun may_be_predicator s =
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2711
  member (op =) [predicator_name, prefixed_predicator_name] s
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2712
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2713
fun strip_predicator (tm as ATerm (s, [tm'])) =
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2714
    if may_be_predicator s then tm' else tm
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2715
  | strip_predicator tm = tm
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2716
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2717
fun make_head_roll (ATerm (s, tms)) =
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2718
    if may_be_app s tms then make_head_roll (hd tms) ||> append (tl tms)
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2719
    else (s, tms)
47032
73cdeed236c0 more weight attribute tuning
blanchet
parents: 47030
diff changeset
  2720
  | make_head_roll _ = ("", [])
46443
c86276014571 improved KBO weights -- beware of explicit applications
blanchet
parents: 46442
diff changeset
  2721
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2722
fun strip_up_to_predicator (AQuant (_, _, phi)) = strip_up_to_predicator phi
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2723
  | strip_up_to_predicator (AConn (_, phis)) = maps strip_up_to_predicator phis
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2724
  | strip_up_to_predicator (AAtom tm) = [strip_predicator tm]
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2725
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2726
fun strip_ahorn_etc (AQuant (_, _, phi)) = strip_ahorn_etc phi
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2727
  | strip_ahorn_etc (AConn (AImplies, [phi1, phi2])) =
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2728
    strip_ahorn_etc phi2 |>> append (strip_up_to_predicator phi1)
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2729
  | strip_ahorn_etc phi = ([], hd (strip_up_to_predicator phi))
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2730
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2731
fun strip_iff_etc (AQuant (_, _, phi)) = strip_iff_etc phi
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2732
  | strip_iff_etc (AConn (AIff, [phi1, phi2])) =
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2733
    pairself strip_up_to_predicator (phi1, phi2)
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2734
  | strip_iff_etc _ = ([], [])
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2735
47030
7e80e14247fc internal renamings
blanchet
parents: 46818
diff changeset
  2736
val max_term_order_weight = 2147483647
46450
7560930b2e06 be more gentle when generating KBO weights
blanchet
parents: 46446
diff changeset
  2737
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2738
fun atp_problem_term_order_info problem =
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2739
  let
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2740
    fun add_edge s s' =
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2741
      Graph.default_node (s, ())
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2742
      #> Graph.default_node (s', ())
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2743
      #> Graph.add_edge_acyclic (s, s')
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2744
    fun add_term_deps head (ATerm (s, args)) =
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2745
        if is_tptp_user_symbol head then
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2746
          (if is_tptp_user_symbol s then perhaps (try (add_edge s head)) else I)
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2747
          #> fold (add_term_deps head) args
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2748
        else
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2749
          I
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2750
      | add_term_deps head (AAbs (_, tm)) = add_term_deps head tm
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2751
    fun add_intro_deps pred (Formula (_, role, phi, _, info)) =
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2752
        if pred (role, info) then
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2753
          let val (hyps, concl) = strip_ahorn_etc phi in
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2754
            case make_head_roll concl of
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2755
              (head, args as _ :: _) => fold (add_term_deps head) (hyps @ args)
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2756
            | _ => I
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2757
          end
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2758
        else
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2759
          I
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2760
      | add_intro_deps _ _ = I
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2761
    fun add_atom_eq_deps (SOME true) (ATerm (s, [lhs as _, rhs])) =
46443
c86276014571 improved KBO weights -- beware of explicit applications
blanchet
parents: 46442
diff changeset
  2762
        if is_tptp_equal s then
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2763
          case make_head_roll lhs of
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2764
            (head, args as _ :: _) => fold (add_term_deps head) (rhs :: args)
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2765
          | _ => I
46443
c86276014571 improved KBO weights -- beware of explicit applications
blanchet
parents: 46442
diff changeset
  2766
        else
c86276014571 improved KBO weights -- beware of explicit applications
blanchet
parents: 46442
diff changeset
  2767
          I
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2768
      | add_atom_eq_deps _ _ = I
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2769
    fun add_eq_deps pred (Formula (_, role, phi, _, info)) =
47039
1b36a05a070d added "metis_advisory_simp" option to orient as many equations as possible in Metis the right way (cf. "More SPASS with Isabelle")
blanchet
parents: 47038
diff changeset
  2770
        if pred (role, info) then
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2771
          case strip_iff_etc phi of
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2772
            ([lhs], rhs) =>
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2773
            (case make_head_roll lhs of
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2774
               (head, args as _ :: _) => fold (add_term_deps head) (rhs @ args)
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2775
             | _ => I)
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2776
          | _ => formula_fold (SOME (role <> Conjecture)) add_atom_eq_deps phi
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2777
        else
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2778
          I
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2779
      | add_eq_deps _ _ = I
47039
1b36a05a070d added "metis_advisory_simp" option to orient as many equations as possible in Metis the right way (cf. "More SPASS with Isabelle")
blanchet
parents: 47038
diff changeset
  2780
    fun has_status status (_, info) =
1b36a05a070d added "metis_advisory_simp" option to orient as many equations as possible in Metis the right way (cf. "More SPASS with Isabelle")
blanchet
parents: 47038
diff changeset
  2781
      extract_isabelle_status info = SOME status
1b36a05a070d added "metis_advisory_simp" option to orient as many equations as possible in Metis the right way (cf. "More SPASS with Isabelle")
blanchet
parents: 47038
diff changeset
  2782
    fun is_conj (role, _) = (role = Conjecture orelse role = Hypothesis)
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2783
    val graph =
47039
1b36a05a070d added "metis_advisory_simp" option to orient as many equations as possible in Metis the right way (cf. "More SPASS with Isabelle")
blanchet
parents: 47038
diff changeset
  2784
      Graph.empty
47073
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2785
      |> fold (fold (add_eq_deps (has_status spec_eqN)) o snd) problem
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2786
      |> fold (fold (add_eq_deps (has_status simpN orf is_conj)) o snd) problem
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2787
      |> fold (fold (add_intro_deps (has_status spec_introN)) o snd) problem
c73f7b0c7ebc generate weights and precedences for predicates as well
blanchet
parents: 47046
diff changeset
  2788
      |> fold (fold (add_intro_deps (has_status introN)) o snd) problem
47030
7e80e14247fc internal renamings
blanchet
parents: 46818
diff changeset
  2789
    fun next_weight w = if w + w <= max_term_order_weight then w + w else w + 1
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2790
    fun add_weights _ [] = I
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2791
      | add_weights weight syms =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2792
        fold (AList.update (op =) o rpair weight) syms
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2793
        #> add_weights (next_weight weight)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2794
               (fold (union (op =) o Graph.immediate_succs graph) syms [])
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2795
  in
47038
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2796
    (* Sorting is not just for aesthetics: It specifies the precedence order
2409b484e1cc continued implementation of term ordering attributes
blanchet
parents: 47032
diff changeset
  2797
       for the term ordering (KBO or LPO), from smaller to larger values. *)
46446
45ff234921a3 tune KBO weight code
blanchet
parents: 46443
diff changeset
  2798
    [] |> add_weights 1 (Graph.minimals graph) |> sort (int_ord o pairself snd)
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2799
  end
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2800
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2801
end;