src/HOL/Tools/ATP/atp_problem_generate.ML
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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 = General | Induct | 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 type_tag_idempotence : bool Config.T
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  val type_tag_arguments : bool Config.T
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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 type_tag_idempotence_helper_name : 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_relevance_weights : string problem -> (string * real) list
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  val atp_problem_kbo_weights : 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 type_tag_idempotence =
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  Attrib.setup_config_bool @{binding atp_type_tag_idempotence} (K false)
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val type_tag_arguments =
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  Attrib.setup_config_bool @{binding atp_type_tag_arguments} (K false)
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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 type_tag_idempotence_helper_name = helper_prefix ^ "ti_idem"
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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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0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   423
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   424
(*Proving one (tycon, class) membership may require proving others, so iterate.*)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   425
fun iter_type_class_pairs _ _ [] = ([], [])
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   426
  | iter_type_class_pairs thy tycons classes =
43263
blanchet
parents: 43259
diff changeset
   427
      let
blanchet
parents: 43259
diff changeset
   428
        fun maybe_insert_class s =
blanchet
parents: 43259
diff changeset
   429
          (s <> type_class andalso not (member (op =) classes s))
blanchet
parents: 43259
diff changeset
   430
          ? insert (op =) s
blanchet
parents: 43259
diff changeset
   431
        val cpairs = type_class_pairs thy tycons classes
blanchet
parents: 43259
diff changeset
   432
        val newclasses =
blanchet
parents: 43259
diff changeset
   433
          [] |> fold (fold (fold (fold maybe_insert_class) o snd) o snd) cpairs
blanchet
parents: 43259
diff changeset
   434
        val (classes', cpairs') = iter_type_class_pairs thy tycons newclasses
43266
3baf384e2b99 minor optimization
blanchet
parents: 43265
diff changeset
   435
      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
   436
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   437
fun make_arity_clauses thy tycons =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   438
  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
   439
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   440
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   441
(** Isabelle class relations **)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   442
43086
blanchet
parents: 43085
diff changeset
   443
type class_rel_clause =
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   444
  {name : string,
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   445
   subclass : name,
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   446
   superclass : name}
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   447
43622
blanchet
parents: 43572
diff changeset
   448
(* Generate all pairs (sub, super) such that sub is a proper subclass of super
blanchet
parents: 43572
diff changeset
   449
   in theory "thy". *)
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   450
fun class_pairs _ [] _ = []
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   451
  | class_pairs thy subs supers =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   452
      let
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   453
        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
   454
        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
   455
        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
   456
      in fold add_supers subs [] end
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   457
43622
blanchet
parents: 43572
diff changeset
   458
fun make_class_rel_clause (sub, super) =
blanchet
parents: 43572
diff changeset
   459
  {name = sub ^ "_" ^ super, subclass = `make_type_class sub,
43086
blanchet
parents: 43085
diff changeset
   460
   superclass = `make_type_class super}
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   461
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   462
fun make_class_rel_clauses thy subs supers =
43093
blanchet
parents: 43092
diff changeset
   463
  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
   464
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   465
(* intermediate terms *)
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   466
datatype iterm =
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   467
  IConst of name * typ * typ list |
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   468
  IVar of name * typ |
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   469
  IApp of iterm * iterm |
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   470
  IAbs of (name * typ) * iterm
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   471
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   472
fun ityp_of (IConst (_, T, _)) = T
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   473
  | ityp_of (IVar (_, T)) = T
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   474
  | ityp_of (IApp (t1, _)) = snd (dest_funT (ityp_of t1))
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   475
  | 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
   476
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   477
(*gets the head of a combinator application, along with the list of arguments*)
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   478
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
   479
  let
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   480
    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
   481
      | stripc x = x
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   482
  in stripc (u, []) end
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   483
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
   484
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
   485
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   486
val tvar_a_str = "'a"
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   487
val tvar_a = TVar ((tvar_a_str, 0), HOLogic.typeS)
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   488
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
   489
val itself_name = `make_fixed_type_const @{type_name itself}
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   490
val TYPE_name = `(make_fixed_const NONE) @{const_name TYPE}
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   491
val tvar_a_atype = AType (tvar_a_name, [])
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   492
val a_itself_atype = AType (itself_name, [tvar_a_atype])
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   493
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   494
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
   495
  [new_skolem_const_prefix, s, string_of_int num_T_args]
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   496
  |> space_implode Long_Name.separator
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   497
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   498
fun robust_const_type thy s =
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   499
  if s = app_op_name then
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   500
    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
   501
  else if String.isPrefix lam_lifted_prefix s then
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   502
    Logic.varifyT_global @{typ "'a => 'b"}
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   503
  else
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   504
    (* Old Skolems throw a "TYPE" exception here, which will be caught. *)
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   505
    s |> Sign.the_const_type thy
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   506
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   507
(* 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
   508
fun robust_const_typargs thy (s, T) =
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   509
  if s = app_op_name then
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   510
    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
   511
  else if String.isPrefix old_skolem_const_prefix s then
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   512
    [] |> 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
   513
  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
   514
    if String.isPrefix lam_lifted_poly_prefix s then
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
   515
      let val (T1, T2) = T |> dest_funT in [T1, T2] end
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
   516
    else
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
   517
      []
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   518
  else
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   519
    (s, T) |> Sign.const_typargs thy
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   520
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   521
(* Converts an Isabelle/HOL term (with combinators) into an intermediate term.
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   522
   Also accumulates sort infomation. *)
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   523
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
   524
    let
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   525
      val (P', P_atomics_Ts) = iterm_from_term thy format bs P
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   526
      val (Q', Q_atomics_Ts) = iterm_from_term thy format bs Q
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   527
    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
   528
  | iterm_from_term thy format _ (Const (c, T)) =
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   529
    (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
   530
             robust_const_typargs thy (c, T)),
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
   531
     atomic_types_of T)
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   532
  | iterm_from_term _ _ _ (Free (s, T)) =
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   533
    (IConst (`make_fixed_var s, T, []), atomic_types_of T)
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   534
  | 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
   535
    (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
   536
       let
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   537
         val Ts = T |> strip_type |> swap |> op ::
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   538
         val s' = new_skolem_const_name s (length Ts)
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   539
       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
   540
     else
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
   541
       IVar ((make_schematic_var v, s), T), atomic_types_of T)
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   542
  | iterm_from_term _ _ bs (Bound j) =
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
   543
    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
   544
  | iterm_from_term thy format bs (Abs (s, T, t)) =
43678
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   545
    let
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   546
      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
   547
      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
   548
      val name = `make_bound_var s
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
   549
      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
   550
    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
   551
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
   552
datatype scope = Global | Local | Assum | Chained
46393
blanchet
parents: 46392
diff changeset
   553
datatype status = General | Induct | Intro | Elim | Simp | Spec_Eq
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
   554
type stature = scope * status
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   555
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
   556
datatype order = First_Order | Higher_Order
44494
a77901b3774e rationalized option names -- mono becomes raw_mono and mangled becomes mono
blanchet
parents: 44493
diff changeset
   557
datatype polymorphism = Polymorphic | Raw_Monomorphic | Mangled_Monomorphic
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
   558
datatype strictness = Strict | Non_Strict
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   559
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
   560
datatype type_level =
44397
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
   561
  All_Types |
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
   562
  Noninf_Nonmono_Types of strictness * granularity |
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   563
  Fin_Nonmono_Types of granularity |
44397
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
   564
  Const_Arg_Types |
43362
8d3a5b7b9a00 name tuning
blanchet
parents: 43361
diff changeset
   565
  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
   566
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   567
datatype type_enc =
44591
0b107d11f634 extended simple types with polymorphism -- the implementation still needs some work though
blanchet
parents: 44589
diff changeset
   568
  Simple_Types of order * polymorphism * type_level |
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   569
  Guards of polymorphism * type_level |
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   570
  Tags of polymorphism * type_level
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   571
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   572
fun is_type_enc_higher_order (Simple_Types (Higher_Order, _, _)) = true
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   573
  | is_type_enc_higher_order _ = false
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   574
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   575
fun polymorphism_of_type_enc (Simple_Types (_, poly, _)) = poly
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   576
  | polymorphism_of_type_enc (Guards (poly, _)) = poly
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   577
  | polymorphism_of_type_enc (Tags (poly, _)) = poly
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   578
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   579
fun level_of_type_enc (Simple_Types (_, _, level)) = level
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   580
  | level_of_type_enc (Guards (_, level)) = level
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   581
  | level_of_type_enc (Tags (_, level)) = level
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   582
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   583
fun granularity_of_type_level (Noninf_Nonmono_Types (_, grain)) = grain
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   584
  | granularity_of_type_level (Fin_Nonmono_Types grain) = grain
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   585
  | granularity_of_type_level _ = All_Vars
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   586
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   587
fun is_type_level_quasi_sound All_Types = true
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   588
  | is_type_level_quasi_sound (Noninf_Nonmono_Types _) = true
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   589
  | is_type_level_quasi_sound _ = false
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   590
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
   591
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   592
fun is_type_level_fairly_sound (Fin_Nonmono_Types _) = true
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   593
  | is_type_level_fairly_sound level = is_type_level_quasi_sound level
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   594
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
   595
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   596
fun is_type_level_monotonicity_based (Noninf_Nonmono_Types _) = true
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   597
  | is_type_level_monotonicity_based (Fin_Nonmono_Types _) = true
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   598
  | 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
   599
44785
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   600
(* "_query", "_bang", and "_at" are for the ASCII-challenged Metis and
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   601
   Mirabelle. *)
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   602
val queries = ["?", "_query"]
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   603
val bangs = ["!", "_bang"]
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   604
val ats = ["@", "_at"]
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   605
42689
e38590764c34 versions of ! and ? for the ASCII-challenged Mirabelle
blanchet
parents: 42688
diff changeset
   606
fun try_unsuffixes ss s =
e38590764c34 versions of ! and ? for the ASCII-challenged Mirabelle
blanchet
parents: 42688
diff changeset
   607
  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
   608
44785
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   609
fun try_nonmono constr suffixes fallback s =
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   610
  case try_unsuffixes suffixes s of
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   611
    SOME s =>
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   612
    (case try_unsuffixes suffixes s of
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   613
       SOME s => (constr Positively_Naked_Vars, s)
44785
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   614
     | NONE =>
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   615
       case try_unsuffixes ats s of
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   616
         SOME s => (constr Ghost_Type_Arg_Vars, s)
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   617
       | NONE => (constr All_Vars, s))
44785
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   618
  | NONE => fallback s
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   619
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
   620
fun type_enc_from_string strictness s =
42722
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   621
  (case try (unprefix "poly_") s of
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   622
     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
   623
   | NONE =>
44494
a77901b3774e rationalized option names -- mono becomes raw_mono and mangled becomes mono
blanchet
parents: 44493
diff changeset
   624
     case try (unprefix "raw_mono_") s of
a77901b3774e rationalized option names -- mono becomes raw_mono and mangled becomes mono
blanchet
parents: 44493
diff changeset
   625
       SOME s => (SOME Raw_Monomorphic, s)
42722
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   626
     | NONE =>
44494
a77901b3774e rationalized option names -- mono becomes raw_mono and mangled becomes mono
blanchet
parents: 44493
diff changeset
   627
       case try (unprefix "mono_") s of
42722
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   628
         SOME s => (SOME Mangled_Monomorphic, s)
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   629
       | NONE => (NONE, s))
44785
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   630
  ||> (pair All_Types
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   631
       |> try_nonmono Fin_Nonmono_Types bangs
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
   632
       |> try_nonmono (curry Noninf_Nonmono_Types strictness) queries)
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   633
  |> (fn (poly, (level, core)) =>
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   634
         case (core, (poly, level)) of
46435
e9c90516bc0d renamed type encoding
blanchet
parents: 46422
diff changeset
   635
           ("native", (SOME poly, _)) =>
44742
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   636
           (case (poly, level) of
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   637
              (Polymorphic, All_Types) =>
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   638
              Simple_Types (First_Order, Polymorphic, All_Types)
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   639
            | (Mangled_Monomorphic, _) =>
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   640
              if granularity_of_type_level level = All_Vars then
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   641
                Simple_Types (First_Order, Mangled_Monomorphic, level)
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   642
              else
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   643
                raise Same.SAME
44742
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   644
            | _ => raise Same.SAME)
46435
e9c90516bc0d renamed type encoding
blanchet
parents: 46422
diff changeset
   645
         | ("native_higher", (SOME poly, _)) =>
44591
0b107d11f634 extended simple types with polymorphism -- the implementation still needs some work though
blanchet
parents: 44589
diff changeset
   646
           (case (poly, level) of
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   647
              (Polymorphic, All_Types) =>
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   648
              Simple_Types (Higher_Order, Polymorphic, All_Types)
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   649
            | (_, Noninf_Nonmono_Types _) => raise Same.SAME
44742
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   650
            | (Mangled_Monomorphic, _) =>
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   651
              if granularity_of_type_level level = All_Vars then
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   652
                Simple_Types (Higher_Order, Mangled_Monomorphic, level)
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   653
              else
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   654
                raise Same.SAME
44742
68e34e7f01ab cleanup "simple" type encodings
blanchet
parents: 44738
diff changeset
   655
            | _ => raise Same.SAME)
44810
c1c05a578c1a stricted type encoding parsing
blanchet
parents: 44786
diff changeset
   656
         | ("guards", (SOME poly, _)) =>
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   657
           if poly = Mangled_Monomorphic andalso
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   658
              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
   659
             raise Same.SAME
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   660
           else
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   661
             Guards (poly, level)
44810
c1c05a578c1a stricted type encoding parsing
blanchet
parents: 44786
diff changeset
   662
         | ("tags", (SOME poly, _)) =>
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   663
           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
   664
             raise Same.SAME
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   665
           else
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
   666
             Tags (poly, level)
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   667
         | ("args", (SOME poly, All_Types (* naja *))) =>
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   668
           Guards (poly, Const_Arg_Types)
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   669
         | ("erased", (NONE, All_Types (* naja *))) =>
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   670
           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
   671
         | _ => raise Same.SAME)
44785
f4975fa4a2f8 parse new experimental '@' encodings
blanchet
parents: 44783
diff changeset
   672
  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
   673
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   674
fun adjust_type_enc (THF (TPTP_Monomorphic, _, _))
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   675
                    (Simple_Types (order, _, level)) =
44591
0b107d11f634 extended simple types with polymorphism -- the implementation still needs some work though
blanchet
parents: 44589
diff changeset
   676
    Simple_Types (order, Mangled_Monomorphic, level)
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   677
  | adjust_type_enc (THF _) type_enc = type_enc
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   678
  | 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
   679
    Simple_Types (First_Order, Mangled_Monomorphic, level)
45303
bd03b08161ac added DFG unsorted support (like in the old days)
blanchet
parents: 45301
diff changeset
   680
  | 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
   681
    Simple_Types (First_Order, Mangled_Monomorphic, level)
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   682
  | 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
   683
    Simple_Types (First_Order, poly, level)
0b107d11f634 extended simple types with polymorphism -- the implementation still needs some work though
blanchet
parents: 44589
diff changeset
   684
  | adjust_type_enc format (Simple_Types (_, poly, level)) =
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
   685
    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
   686
  | 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
   687
    (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
   688
  | 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
   689
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   690
fun constify_lifted (t $ u) = constify_lifted t $ constify_lifted u
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   691
  | 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
   692
  | 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
   693
    (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
   694
  | constify_lifted t = t
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
   695
46375
d724066ff3d0 reverted e2b1a86d59fc -- broke Metis's lambda-lifting
blanchet
parents: 46371
diff changeset
   696
(* 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
   697
   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
   698
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
   699
    (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
   700
       SOME s =>
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   701
       let
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   702
         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
   703
         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
   704
       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
   705
     | NONE => t)
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   706
  | open_form _ t = t
46375
d724066ff3d0 reverted e2b1a86d59fc -- broke Metis's lambda-lifting
blanchet
parents: 46371
diff changeset
   707
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
   708
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
   709
  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
   710
  #-> Lambda_Lifting.lift_lambdas
45564
2231a151db59 protect prefix against variant mutations
blanchet
parents: 45554
diff changeset
   711
          (SOME ((if polymorphism_of_type_enc type_enc = Polymorphic then
2231a151db59 protect prefix against variant mutations
blanchet
parents: 45554
diff changeset
   712
                    lam_lifted_poly_prefix
2231a151db59 protect prefix against variant mutations
blanchet
parents: 45554
diff changeset
   713
                  else
2231a151db59 protect prefix against variant mutations
blanchet
parents: 45554
diff changeset
   714
                    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
   715
          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
   716
  #> fst
46385
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   717
fun lift_lams_part_2 (facts, lifted) =
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   718
  (map (open_form (unprefix close_form_prefix) o constify_lifted) facts,
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
   719
   map (open_form I o constify_lifted) lifted)
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
   720
val lift_lams = lift_lams_part_2 ooo lift_lams_part_1
44088
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   721
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   722
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
   723
    intentionalize_def t
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   724
  | 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
   725
    let
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   726
      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
   727
      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
   728
      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
   729
      val n = length args
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   730
      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
   731
      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
   732
    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
   733
  | intentionalize_def t = t
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   734
40114
blanchet
parents: 40069
diff changeset
   735
type translated_formula =
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   736
  {name : string,
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
   737
   stature : stature,
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   738
   kind : formula_kind,
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   739
   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
   740
   atomic_types : typ list}
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   741
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
   742
fun update_iformula f ({name, stature, kind, iformula, atomic_types}
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   743
                       : translated_formula) =
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
   744
  {name = name, stature = stature, kind = kind, iformula = f iformula,
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   745
   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
   746
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   747
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
   748
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
   749
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
   750
  let val T = get_T x in
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
   751
    if exists (type_instance ctxt T o get_T) xs then xs
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
   752
    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
   753
  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
   754
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
   755
(* 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
   756
datatype type_arg_policy =
45937
blanchet
parents: 45920
diff changeset
   757
  Explicit_Type_Args of bool (* infer_from_term_args *) |
44771
0e5d4388bbac make mangling sound w.r.t. type arguments
blanchet
parents: 44770
diff changeset
   758
  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
   759
  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
   760
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
   761
fun type_arg_policy monom_constrs type_enc s =
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   762
  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
   763
    if s = type_tag_name then
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   764
      if poly = Mangled_Monomorphic then Mangled_Type_Args
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   765
      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
   766
    else case type_enc of
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   767
      Simple_Types (_, Polymorphic, _) => Explicit_Type_Args false
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   768
    | 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
   769
    | _ =>
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
   770
      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
   771
        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
   772
           (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
   773
          No_Type_Args
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   774
        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
   775
          Mangled_Type_Args
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
   776
        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
   777
                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
   778
          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
   779
        else
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   780
          Explicit_Type_Args
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   781
              (level = All_Types orelse
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
   782
               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
   783
      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
   784
  end
42227
662b50b7126f if "monomorphize" is enabled, mangle the type information in the names by default
blanchet
parents: 42180
diff changeset
   785
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   786
(* Make atoms for sorted type variables. *)
43263
blanchet
parents: 43259
diff changeset
   787
fun generic_add_sorts_on_type (_, []) = I
blanchet
parents: 43259
diff changeset
   788
  | generic_add_sorts_on_type ((x, i), s :: ss) =
blanchet
parents: 43259
diff changeset
   789
    generic_add_sorts_on_type ((x, i), ss)
blanchet
parents: 43259
diff changeset
   790
    #> (if s = the_single @{sort HOL.type} then
43093
blanchet
parents: 43092
diff changeset
   791
          I
blanchet
parents: 43092
diff changeset
   792
        else if i = ~1 then
44623
blanchet
parents: 44622
diff changeset
   793
          insert (op =) (`make_type_class s, `make_fixed_type_var x)
43093
blanchet
parents: 43092
diff changeset
   794
        else
44623
blanchet
parents: 44622
diff changeset
   795
          insert (op =) (`make_type_class s,
blanchet
parents: 44622
diff changeset
   796
                         (make_schematic_type_var (x, i), x)))
43263
blanchet
parents: 43259
diff changeset
   797
fun add_sorts_on_tfree (TFree (s, S)) = generic_add_sorts_on_type ((s, ~1), S)
blanchet
parents: 43259
diff changeset
   798
  | add_sorts_on_tfree _ = I
blanchet
parents: 43259
diff changeset
   799
fun add_sorts_on_tvar (TVar z) = generic_add_sorts_on_type z
blanchet
parents: 43259
diff changeset
   800
  | add_sorts_on_tvar _ = I
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   801
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   802
fun type_class_formula type_enc class arg =
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   803
  AAtom (ATerm (class, arg ::
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   804
      (case type_enc of
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   805
         Simple_Types (First_Order, Polymorphic, _) =>
45301
866b075aa99b added sorted DFG output for coming version of SPASS
blanchet
parents: 45299
diff changeset
   806
         if avoid_first_order_ghost_type_vars then [ATerm (TYPE_name, [arg])]
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
   807
         else []
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   808
       | _ => [])))
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   809
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
   810
  [] |> level_of_type_enc type_enc <> No_Types ? fold add_sorts_on_typ Ts
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   811
     |> map (fn (class, name) =>
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
   812
                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
   813
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
   814
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
   815
  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
   816
    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
   817
  end
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   818
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
   819
  | 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
   820
fun mk_aquant _ [] phi = phi
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   821
  | 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
   822
    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
   823
  | 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
   824
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   825
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
   826
  let
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   827
    fun add_formula_vars bounds (AQuant (_, xs, phi)) =
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   828
        add_formula_vars (map fst xs @ bounds) phi
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   829
      | add_formula_vars bounds (AConn (_, phis)) =
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   830
        fold (add_formula_vars bounds) phis
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   831
      | add_formula_vars bounds (AAtom tm) = add_term_vars bounds tm
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   832
  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
   833
45377
blanchet
parents: 45364
diff changeset
   834
fun add_term_vars bounds (ATerm (name as (s, _), tms)) =
blanchet
parents: 45364
diff changeset
   835
    (if is_tptp_variable s andalso
blanchet
parents: 45364
diff changeset
   836
        not (String.isPrefix tvar_prefix s) andalso
blanchet
parents: 45364
diff changeset
   837
        not (member (op =) bounds name) then
blanchet
parents: 45364
diff changeset
   838
       insert (op =) (name, NONE)
blanchet
parents: 45364
diff changeset
   839
     else
blanchet
parents: 45364
diff changeset
   840
       I)
blanchet
parents: 45364
diff changeset
   841
    #> fold (add_term_vars bounds) tms
blanchet
parents: 45364
diff changeset
   842
  | add_term_vars bounds (AAbs ((name, _), tm)) =
blanchet
parents: 45364
diff changeset
   843
    add_term_vars (name :: bounds) tm
45401
36478a5f6104 made SML/NJ happy
blanchet
parents: 45377
diff changeset
   844
fun close_formula_universally phi = close_universally add_term_vars phi
45315
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   845
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   846
fun add_iterm_vars bounds (IApp (tm1, tm2)) =
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   847
    fold (add_iterm_vars bounds) [tm1, tm2]
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   848
  | add_iterm_vars _ (IConst _) = I
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   849
  | add_iterm_vars bounds (IVar (name, T)) =
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   850
    not (member (op =) bounds name) ? insert (op =) (name, SOME T)
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   851
  | add_iterm_vars bounds (IAbs (_, tm)) = add_iterm_vars bounds tm
dfbbc5ac7194 improved TFF1 output
blanchet
parents: 45304
diff changeset
   852
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
   853
46338
b02ff6b17599 better handling of individual type for DFG format (SPASS)
blanchet
parents: 46320
diff changeset
   854
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
   855
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
   856
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
   857
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
   858
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
   859
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
   860
  let
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   861
    fun term (Type (s, Ts)) =
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   862
      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
   863
               (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
   864
             | (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
   865
             | _ => 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
   866
                       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
   867
                      `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
   868
                    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
   869
                      `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
   870
             map term Ts)
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   871
    | 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
   872
    | 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
   873
  in term end
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   874
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
   875
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
   876
  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
   877
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   878
(* This shouldn't clash with anything else. *)
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
   879
val uncurried_alias_sep = "\000"
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   880
val mangled_type_sep = "\001"
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   881
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
   882
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
   883
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   884
fun generic_mangled_type_name f (ATerm (name, [])) = f name
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   885
  | 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
   886
    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
   887
    ^ ")"
43692
264881a20f50 make SML/NJ happy + tuning
blanchet
parents: 43678
diff changeset
   888
  | 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
   889
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
   890
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
   891
  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
   892
46435
e9c90516bc0d renamed type encoding
blanchet
parents: 46422
diff changeset
   893
fun make_native_type s =
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   894
  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
   895
     s = tptp_individual_type then
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   896
    s
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   897
  else
46435
e9c90516bc0d renamed type encoding
blanchet
parents: 46422
diff changeset
   898
    native_type_prefix ^ ascii_of s
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   899
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
   900
fun ho_type_from_ho_term type_enc pred_sym ary =
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   901
  let
44593
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
   902
    fun to_mangled_atype ty =
46435
e9c90516bc0d renamed type encoding
blanchet
parents: 46422
diff changeset
   903
      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
   904
              generic_mangled_type_name snd ty), [])
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
   905
    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
   906
      | to_poly_atype _ = raise Fail "unexpected type abstraction"
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
   907
    val to_atype =
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
   908
      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
   909
      else to_mangled_atype
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   910
    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
   911
    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
   912
      | 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
   913
      | 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
   914
    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
   915
        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
   916
      | to_ho _ = raise Fail "unexpected type abstraction"
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   917
  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
   918
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
   919
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
   920
  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
   921
  o ho_term_from_typ format type_enc
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   922
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
   923
fun aliased_uncurried ary (s, s') =
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
   924
  (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
   925
fun unaliased_uncurried (s, s') =
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
   926
  case space_explode uncurried_alias_sep s of
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   927
    [_] => (s, s')
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   928
  | [s1, s2] => (s1, unsuffix s2 s')
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   929
  | _ => raise Fail "ill-formed explicit application alias"
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   930
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   931
fun raw_mangled_const_name type_name ty_args (s, s') =
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   932
  let
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   933
    fun type_suffix f g =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   934
      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
   935
               ty_args ""
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   936
  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
   937
fun mangled_const_name format type_enc =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   938
  map_filter (ho_term_for_type_arg format type_enc)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   939
  #> 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
   940
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
   941
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
   942
  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
   943
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
   944
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
   945
  (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
   946
   -- 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
   947
                    [] >> 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
   948
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
   949
  (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
   950
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
   951
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
   952
  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
   953
    |> 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
   954
           (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
   955
                                                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
   956
    |> 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
   957
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   958
fun unmangled_const_name s =
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
   959
  (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
   960
fun unmangled_const s =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
   961
  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
   962
    (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
   963
  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
   964
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
   965
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
   966
  let
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   967
    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
   968
      | 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
   969
                       _ =
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   970
        (* 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
   971
           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
   972
           "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
   973
           possible. *)
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   974
        IAbs ((`I "P", p_T),
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   975
              IApp (IConst (`I ho_quant, T, []),
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   976
                    IAbs ((`I "X", x_T),
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   977
                          IApp (IConst (`I "P", p_T, []),
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   978
                                IConst (`I "X", x_T, [])))))
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   979
      | 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
   980
    fun intro top_level args (IApp (tm1, tm2)) =
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   981
        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
   982
      | 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
   983
        (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
   984
           SOME proxy_base =>
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   985
           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
   986
             case (top_level, s) of
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   987
               (_, "c_False") => IConst (`I tptp_false, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   988
             | (_, "c_True") => IConst (`I tptp_true, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   989
             | (false, "c_Not") => IConst (`I tptp_not, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   990
             | (false, "c_conj") => IConst (`I tptp_and, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   991
             | (false, "c_disj") => IConst (`I tptp_or, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   992
             | (false, "c_implies") => IConst (`I tptp_implies, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   993
             | (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
   994
             | (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
   995
             | (false, s) =>
44097
3cae91385086 workaround THF parser limitation
blanchet
parents: 44088
diff changeset
   996
               if is_tptp_equal s andalso length args = 2 then
3cae91385086 workaround THF parser limitation
blanchet
parents: 44088
diff changeset
   997
                 IConst (`I tptp_equal, T, [])
3cae91385086 workaround THF parser limitation
blanchet
parents: 44088
diff changeset
   998
               else
44589
0a1dfc6365e9 first step towards polymorphic TFF + changed defaults for Vampire
blanchet
parents: 44587
diff changeset
   999
                 (* Use a proxy even for partially applied THF0 equality,
0a1dfc6365e9 first step towards polymorphic TFF + changed defaults for Vampire
blanchet
parents: 44587
diff changeset
  1000
                    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
  1001
                    being able to infer the type of "=". *)
44097
3cae91385086 workaround THF parser limitation
blanchet
parents: 44088
diff changeset
  1002
                 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
  1003
             | _ => IConst (name, T, [])
42569
5737947e4c77 make sure that fequal keeps its type arguments for mangled type systems
blanchet
parents: 42568
diff changeset
  1004
           else
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1005
             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
  1006
          | 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
  1007
                    else IConst (name, T, T_args))
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1008
      | 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
  1009
      | intro _ _ tm = tm
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
  1010
  in intro true [] end
42568
7b9801a34836 no needless "fequal" proxies if "explicit_apply" is set + always have readable names
blanchet
parents: 42566
diff changeset
  1011
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1012
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
  1013
  case unprefix_and_unascii const_prefix s of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1014
    NONE => (name, T_args)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1015
  | SOME s'' =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1016
    case type_arg_policy [] type_enc (invert_const s'') of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1017
      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
  1018
    | _ => (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
  1019
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
  1020
  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
  1021
    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
  1022
      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
  1023
        | mangle (tm as IConst (_, _, [])) = tm
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1024
        | mangle (IConst (name, T, T_args)) =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1025
          mangle_type_args_in_const format type_enc name T_args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1026
          |> (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
  1027
        | 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
  1028
        | 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
  1029
    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
  1030
  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
  1031
    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
  1032
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1033
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
  1034
  | 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
  1035
    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
  1036
  | chop_fun _ T = ([], T)
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1037
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
  1038
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
  1039
  | 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
  1040
    let
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1041
      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
  1042
      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
  1043
      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
  1044
    in
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1045
      U_args ~~ T_args
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1046
      |> map (fn (U, T) =>
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1047
                 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
  1048
    end
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1049
    handle TYPE _ => T_args
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1050
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1051
fun filter_type_args_in_const _ _ _ _ _ [] = []
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1052
  | 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
  1053
    case unprefix_and_unascii const_prefix s of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1054
      NONE =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1055
      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
  1056
      else T_args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1057
    | SOME s'' =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1058
      let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1059
        val s'' = invert_const s''
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1060
        fun filter_T_args false = T_args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1061
          | 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
  1062
      in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1063
        case type_arg_policy monom_constrs type_enc s'' of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1064
          Explicit_Type_Args infer_from_term_args =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1065
          filter_T_args infer_from_term_args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1066
        | No_Type_Args => []
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1067
        | Mangled_Type_Args => raise Fail "unexpected (un)mangled symbol"
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1068
      end
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  1069
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
  1070
  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
  1071
    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
  1072
      | filt ary (IConst (name as (s, _), T, T_args)) =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1073
        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
  1074
        |> (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
  1075
      | 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
  1076
      | 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
  1077
  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
  1078
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1079
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
  1080
  let
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1081
    val thy = Proof_Context.theory_of ctxt
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1082
    fun do_term bs t atomic_Ts =
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
  1083
      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
  1084
      |>> (introduce_proxies_in_iterm type_enc
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1085
           #> 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
  1086
      ||> 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
  1087
    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
  1088
      let
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1089
        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
  1090
        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
  1091
        val name =
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1092
          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
  1093
                   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
  1094
                 | 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
  1095
                 | 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
  1096
      in
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1097
        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
  1098
        #>> mk_aquant q [(name, SOME T)]
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1099
        ##> union (op =) (atomic_types_of T)
38518
54727b44e277 handle bound name conflicts gracefully in FOF translation
blanchet
parents: 38496
diff changeset
  1100
      end
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1101
    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
  1102
      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
  1103
    and do_formula bs pos t =
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1104
      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
  1105
        @{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
  1106
      | @{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
  1107
      | 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
  1108
        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
  1109
      | (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
  1110
        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
  1111
      | 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
  1112
        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
  1113
      | (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
  1114
        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
  1115
      | @{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
  1116
      | @{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
  1117
      | @{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
  1118
        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
  1119
      | 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
  1120
        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
  1121
      | _ => do_term bs t
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1122
  in do_formula [] end
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1123
46093
blanchet
parents: 46071
diff changeset
  1124
fun presimplify_term ctxt t =
blanchet
parents: 46071
diff changeset
  1125
  t |> exists_Const (member (op =) Meson.presimplified_consts o fst) t
blanchet
parents: 46071
diff changeset
  1126
       ? (Skip_Proof.make_thm (Proof_Context.theory_of ctxt)
blanchet
parents: 46071
diff changeset
  1127
          #> Meson.presimplify
blanchet
parents: 46071
diff changeset
  1128
          #> prop_of)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1129
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
  1130
fun concealed_bound_name j = atp_weak_prefix ^ string_of_int j
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1131
fun conceal_bounds Ts t =
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1132
  subst_bounds (map (Free o apfst concealed_bound_name)
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1133
                    (0 upto length Ts - 1 ~~ Ts), t)
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1134
fun reveal_bounds Ts =
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1135
  subst_atomic (map (fn (j, T) => (Free (concealed_bound_name j, T), Bound j))
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1136
                    (0 upto length Ts - 1 ~~ Ts))
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1137
43265
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1138
fun is_fun_equality (@{const_name HOL.eq},
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1139
                     Type (_, [Type (@{type_name fun}, _), _])) = true
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1140
  | is_fun_equality _ = false
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1141
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
  1142
fun extensionalize_term ctxt t =
43265
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1143
  if exists_Const is_fun_equality t then
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1144
    let val thy = Proof_Context.theory_of ctxt in
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1145
      t |> cterm_of thy |> Meson.extensionalize_conv ctxt
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1146
        |> prop_of |> Logic.dest_equals |> snd
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1147
    end
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1148
  else
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
  1149
    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
  1150
43862
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
  1151
fun simple_translate_lambdas do_lambdas ctxt 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
  1152
  let val thy = Proof_Context.theory_of ctxt in
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
  1153
    if Meson.is_fol_term thy t then
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
  1154
      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
  1155
    else
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
  1156
      let
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1157
        fun trans Ts 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
  1158
          case t of
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1159
            @{const Not} $ t1 => @{const Not} $ trans Ts t1
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
  1160
          | (t0 as Const (@{const_name All}, _)) $ Abs (s, T, t') =>
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1161
            t0 $ Abs (s, T, trans (T :: Ts) 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
  1162
          | (t0 as Const (@{const_name All}, _)) $ t1 =>
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1163
            trans Ts (t0 $ eta_expand Ts t1 1)
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
  1164
          | (t0 as Const (@{const_name Ex}, _)) $ Abs (s, T, t') =>
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1165
            t0 $ Abs (s, T, trans (T :: Ts) 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
  1166
          | (t0 as Const (@{const_name Ex}, _)) $ t1 =>
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1167
            trans Ts (t0 $ eta_expand Ts t1 1)
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1168
          | (t0 as @{const HOL.conj}) $ t1 $ t2 =>
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1169
            t0 $ trans Ts t1 $ trans Ts t2
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1170
          | (t0 as @{const HOL.disj}) $ t1 $ t2 =>
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1171
            t0 $ trans Ts t1 $ trans Ts t2
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1172
          | (t0 as @{const HOL.implies}) $ t1 $ t2 =>
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1173
            t0 $ trans Ts t1 $ trans Ts t2
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
  1174
          | (t0 as Const (@{const_name HOL.eq}, Type (_, [@{typ bool}, _])))
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
  1175
              $ t1 $ t2 =>
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1176
            t0 $ trans Ts t1 $ trans Ts t2
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
  1177
          | _ =>
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
  1178
            if not (exists_subterm (fn Abs _ => true | _ => false) t) then 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
  1179
            else t |> Envir.eta_contract |> do_lambdas ctxt Ts
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
  1180
        val (t, ctxt') = Variable.import_terms true [t] ctxt |>> the_single
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1181
      in t |> trans [] |> singleton (Variable.export_terms ctxt' ctxt) end
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
  1182
  end
43856
d636b053d4ff move more lambda-handling logic to Sledgehammer, from ATP module, for formal dependency reasons
blanchet
parents: 43830
diff changeset
  1183
43997
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
  1184
fun do_cheaply_conceal_lambdas Ts (t1 $ t2) =
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
  1185
    do_cheaply_conceal_lambdas Ts t1
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
  1186
    $ do_cheaply_conceal_lambdas Ts t2
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
  1187
  | do_cheaply_conceal_lambdas Ts (Abs (_, T, t)) =
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
  1188
    Const (lam_lifted_poly_prefix ^ serial_string (),
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
  1189
           T --> fastype_of1 (T :: Ts, t))
43997
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
  1190
  | do_cheaply_conceal_lambdas _ t = t
43856
d636b053d4ff move more lambda-handling logic to Sledgehammer, from ATP module, for formal dependency reasons
blanchet
parents: 43830
diff changeset
  1191
43862
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
  1192
fun do_introduce_combinators ctxt Ts t =
42361
23f352990944 modernized structure Proof_Context;
wenzelm
parents: 42353
diff changeset
  1193
  let val thy = Proof_Context.theory_of ctxt in
43905
1ace987e22e5 avoid calling "Term.is_first_order" (indirectly) on a term with loose de Bruijns -- this is not necessary anyway because of the Abs check in "simple_translate_lambdas"
blanchet
parents: 43864
diff changeset
  1194
    t |> conceal_bounds Ts
1ace987e22e5 avoid calling "Term.is_first_order" (indirectly) on a term with loose de Bruijns -- this is not necessary anyway because of the Abs check in "simple_translate_lambdas"
blanchet
parents: 43864
diff changeset
  1195
      |> cterm_of thy
1ace987e22e5 avoid calling "Term.is_first_order" (indirectly) on a term with loose de Bruijns -- this is not necessary anyway because of the Abs check in "simple_translate_lambdas"
blanchet
parents: 43864
diff changeset
  1196
      |> Meson_Clausify.introduce_combinators_in_cterm
1ace987e22e5 avoid calling "Term.is_first_order" (indirectly) on a term with loose de Bruijns -- this is not necessary anyway because of the Abs check in "simple_translate_lambdas"
blanchet
parents: 43864
diff changeset
  1197
      |> prop_of |> Logic.dest_equals |> snd
1ace987e22e5 avoid calling "Term.is_first_order" (indirectly) on a term with loose de Bruijns -- this is not necessary anyway because of the Abs check in "simple_translate_lambdas"
blanchet
parents: 43864
diff changeset
  1198
      |> reveal_bounds Ts
38491
f7e51d981a9f invoke Variable.export/import_term on the entire formula, to make sure that schematic variables don't get different indices in different subterms;
blanchet
parents: 38282
diff changeset
  1199
  end
43862
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
  1200
  (* A type variable of sort "{}" will make abstraction fail. *)
43997
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
  1201
  handle THM _ => t |> do_cheaply_conceal_lambdas Ts
43862
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
  1202
val introduce_combinators = simple_translate_lambdas do_introduce_combinators
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
  1203
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1204
fun preprocess_abstractions_in_terms trans_lams facts =
43862
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
  1205
  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
  1206
    val (facts, lambda_ts) =
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1207
      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
  1208
            |>> 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
  1209
    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
  1210
      map2 (fn t => fn j =>
46393
blanchet
parents: 46392
diff changeset
  1211
               ((lam_fact_prefix ^ Int.toString j, (Global, Spec_Eq)),
blanchet
parents: 46392
diff changeset
  1212
                (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
  1213
           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
  1214
  in (facts, lam_facts) end
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1215
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1216
(* 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
  1217
   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
  1218
fun freeze_term t =
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1219
  let
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1220
    fun freeze (t $ u) = freeze t $ freeze u
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1221
      | freeze (Abs (s, T, t)) = Abs (s, T, freeze t)
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1222
      | 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
  1223
        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
  1224
      | freeze t = t
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1225
  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
  1226
46093
blanchet
parents: 46071
diff changeset
  1227
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
  1228
  (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
  1229
     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
  1230
     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
  1231
               |> 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
  1232
               |> 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
  1233
     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
  1234
   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
  1235
     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
  1236
       |> extensionalize_term ctxt
46093
blanchet
parents: 46071
diff changeset
  1237
       |> 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
  1238
       |> 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
  1239
   end
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
  1240
   handle TERM _ => if role = Conjecture then @{term False} else @{term True})
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
  1241
  |> pair role
43096
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1242
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1243
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
  1244
  let
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1245
    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
  1246
      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
  1247
                         (SOME (kind <> Conjecture)) t []
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1248
      |>> close_iformula_universally
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1249
  in
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1250
    {name = name, stature = stature, kind = kind, iformula = iformula,
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1251
     atomic_types = atomic_Ts}
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1252
  end
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1253
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1254
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
  1255
  case t |> make_formula ctxt format type_enc (eq_as_iff andalso format <> CNF)
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1256
                         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
  1257
    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
  1258
    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
  1259
  | formula => SOME formula
42561
23ddc4e3d19c have properly type-instantiated helper facts (combinators and If)
blanchet
parents: 42560
diff changeset
  1260
46385
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
  1261
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
  1262
  | s_not_trueprop t =
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
  1263
    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
  1264
    else @{prop False} (* "t" is too meta *)
44460
blanchet
parents: 44450
diff changeset
  1265
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1266
fun make_conjecture ctxt format type_enc =
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1267
  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
  1268
          t |> kind = Conjecture ? s_not_trueprop
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1269
            |> make_formula ctxt format type_enc (format <> CNF) name stature
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1270
                            kind)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1271
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
  1272
(** 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
  1273
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1274
fun tvar_footprint thy s ary =
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1275
  (case unprefix_and_unascii const_prefix s of
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1276
     SOME s =>
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1277
     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
  1278
       |> map (fn T => Term.add_tvarsT T [] |> map fst)
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1279
   | NONE => [])
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1280
  handle TYPE _ => []
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1281
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1282
fun ghost_type_args thy s ary =
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1283
  if is_tptp_equal s then
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1284
    0 upto ary - 1
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1285
  else
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1286
    let
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1287
      val footprint = tvar_footprint thy s ary
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1288
      val eq = (s = @{const_name HOL.eq})
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1289
      fun ghosts _ [] = []
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1290
        | ghosts seen ((i, tvars) :: args) =
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1291
          ghosts (union (op =) seen tvars) args
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1292
          |> (eq orelse exists (fn tvar => not (member (op =) seen tvar)) tvars)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1293
             ? cons i
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1294
    in
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1295
      if forall null footprint then
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1296
        []
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1297
      else
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1298
        0 upto length footprint - 1 ~~ footprint
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1299
        |> 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
  1300
        |> ghosts []
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1301
    end
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1302
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1303
type monotonicity_info =
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1304
  {maybe_finite_Ts : typ list,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1305
   surely_finite_Ts : typ list,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1306
   maybe_infinite_Ts : typ list,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1307
   surely_infinite_Ts : typ list,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1308
   maybe_nonmono_Ts : typ list}
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1309
44397
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
  1310
(* These types witness that the type classes they belong to allow infinite
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
  1311
   models and hence that any types with these type classes is monotonic. *)
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
  1312
val known_infinite_types =
44634
2ac4ff398bc3 make "sound" sound and "unsound" more sound, based on evaluation
blanchet
parents: 44626
diff changeset
  1313
  [@{typ nat}, HOLogic.intT, HOLogic.realT, @{typ "nat => bool"}]
44397
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
  1314
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  1315
fun is_type_kind_of_surely_infinite ctxt strictness cached_Ts T =
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  1316
  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
  1317
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
  1318
(* 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
  1319
   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
  1320
   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
  1321
   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
  1322
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1323
fun should_encode_type _ (_ : monotonicity_info) All_Types _ = true
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1324
  | should_encode_type ctxt {maybe_finite_Ts, surely_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1325
                             maybe_nonmono_Ts, ...}
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  1326
                       (Noninf_Nonmono_Types (strictness, grain)) T =
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1327
    grain = Ghost_Type_Arg_Vars orelse
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1328
    (exists (type_intersect ctxt T) maybe_nonmono_Ts andalso
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1329
     not (exists (type_instance ctxt T) surely_infinite_Ts orelse
44859
237ba63d6041 fixed definition of type intersection (soundness bug)
blanchet
parents: 44853
diff changeset
  1330
          (not (member (type_equiv ctxt) maybe_finite_Ts T) andalso
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  1331
           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
  1332
                                           T)))
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1333
  | should_encode_type ctxt {surely_finite_Ts, maybe_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1334
                             maybe_nonmono_Ts, ...}
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1335
                       (Fin_Nonmono_Types grain) T =
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1336
    grain = Ghost_Type_Arg_Vars orelse
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1337
    (exists (type_intersect ctxt T) maybe_nonmono_Ts andalso
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1338
     (exists (type_generalization ctxt T) surely_finite_Ts orelse
44859
237ba63d6041 fixed definition of type intersection (soundness bug)
blanchet
parents: 44853
diff changeset
  1339
      (not (member (type_equiv ctxt) maybe_infinite_Ts T) andalso
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1340
       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
  1341
  | 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
  1342
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  1343
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
  1344
    should_guard_var () andalso should_encode_type ctxt mono level T
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1345
  | 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
  1346
44403
15160cdc4688 precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents: 44402
diff changeset
  1347
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
  1348
    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
  1349
    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
  1350
  | 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
  1351
  | is_maybe_universal_var _ = false
42836
9adf6b3965b3 code cleanup, better handling of corner cases
blanchet
parents: 42834
diff changeset
  1352
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1353
datatype site =
43361
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1354
  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
  1355
  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
  1356
  Elsewhere
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  1357
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1358
fun should_tag_with_type _ _ _ (Top_Level _) _ _ = false
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1359
  | 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
  1360
    if granularity_of_type_level level = All_Vars then
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1361
      should_encode_type ctxt mono level T
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1362
    else
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1363
      (case (site, is_maybe_universal_var u) of
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1364
         (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
  1365
       | _ => false)
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1366
  | 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
  1367
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  1368
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
  1369
  let
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1370
    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
  1371
    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
  1372
      | fuse ary (Type (@{type_name fun}, [T1, T2])) =
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  1373
        fuse 0 T1 --> fuse (ary - 1) T2
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  1374
      | fuse _ _ = raise Fail "expected function type"
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  1375
  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
  1376
44450
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1377
(** predicators and application operators **)
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  1378
42574
blanchet
parents: 42573
diff changeset
  1379
type sym_info =
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1380
  {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
  1381
   in_conj : bool}
42563
e70ffe3846d0 improve helper type instantiation code
blanchet
parents: 42562
diff changeset
  1382
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1383
fun default_sym_tab_entries type_enc =
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1384
  (make_fixed_const NONE @{const_name undefined},
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1385
       {pred_sym = false, min_ary = 0, max_ary = 0, types = [],
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1386
        in_conj = false}) ::
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1387
  ([tptp_false, tptp_true]
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1388
   |> 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
  1389
                  in_conj = false})) @
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1390
  ([tptp_equal, tptp_old_equal]
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1391
   |> 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
  1392
                  in_conj = false}))
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1393
  |> not (is_type_enc_higher_order type_enc)
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1394
     ? cons (prefixed_predicator_name,
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1395
             {pred_sym = true, min_ary = 1, max_ary = 1, types = [],
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1396
              in_conj = false})
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1397
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1398
datatype app_op_level = Incomplete_Apply | Sufficient_Apply | Full_Apply
46389
blanchet
parents: 46385
diff changeset
  1399
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1400
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
  1401
  let
44772
blanchet
parents: 44771
diff changeset
  1402
    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
  1403
      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
  1404
        fun iter ary T =
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1405
          if ary = max_ary orelse type_instance ctxt var_T T orelse
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1406
             type_instance ctxt T var_T then
43210
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1407
            ary
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1408
          else
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1409
            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
  1410
      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
  1411
    fun add_universal_var T (accum as ((bool_vars, fun_var_Ts), sym_tab)) =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1412
      if app_op_level = Sufficient_Apply andalso
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
  1413
         (can dest_funT T orelse T = @{typ bool}) 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
  1414
        let
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
  1415
          val bool_vars' = bool_vars orelse body_type T = @{typ bool}
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1416
          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
  1417
            {pred_sym = pred_sym andalso not bool_vars',
44772
blanchet
parents: 44771
diff changeset
  1418
             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
  1419
             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
  1420
          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
  1421
            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
  1422
        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
  1423
          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
  1424
             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
  1425
            accum
43167
839f599bc7ed ensured that the logic for "explicit_apply = smart" also works on CNF (i.e. new Metis)
blanchet
parents: 43159
diff changeset
  1426
          else
44772
blanchet
parents: 44771
diff changeset
  1427
            ((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
  1428
        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
  1429
      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
  1430
        accum
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1431
      fun add_iterm_syms conj_fact top_level tm
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1432
                         (accum as ((bool_vars, fun_var_Ts), sym_tab)) =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1433
        let val (head, args) = strip_iterm_comb tm in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1434
          (case head of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1435
             IConst ((s, _), T, _) =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1436
             if String.isPrefix bound_var_prefix s orelse
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1437
                String.isPrefix all_bound_var_prefix s then
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1438
               add_universal_var T accum
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1439
             else if String.isPrefix exist_bound_var_prefix s then
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1440
               accum
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1441
             else
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1442
               let val ary = length args in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1443
                 ((bool_vars, fun_var_Ts),
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1444
                  case Symtab.lookup sym_tab s of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1445
                    SOME {pred_sym, min_ary, max_ary, types, in_conj} =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1446
                    let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1447
                      val pred_sym =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1448
                        pred_sym andalso top_level andalso not bool_vars
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1449
                      val types' = types |> insert_type ctxt I T
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1450
                      val in_conj = in_conj orelse conj_fact
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1451
                      val min_ary =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1452
                        if app_op_level = Sufficient_Apply andalso
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1453
                           not (pointer_eq (types', types)) then
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1454
                          fold (consider_var_ary T) fun_var_Ts min_ary
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1455
                        else
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1456
                          min_ary
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1457
                    in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1458
                      Symtab.update (s, {pred_sym = pred_sym,
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1459
                                         min_ary = Int.min (ary, min_ary),
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1460
                                         max_ary = Int.max (ary, max_ary),
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1461
                                         types = types', in_conj = in_conj})
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1462
                                    sym_tab
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1463
                    end
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1464
                  | NONE =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1465
                    let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1466
                      val pred_sym = top_level andalso not bool_vars
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1467
                      val min_ary =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1468
                        case app_op_level of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1469
                          Incomplete_Apply => ary
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1470
                        | Sufficient_Apply =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1471
                          fold (consider_var_ary T) fun_var_Ts ary
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1472
                        | Full_Apply => 0
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1473
                    in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1474
                      Symtab.update_new (s,
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1475
                          {pred_sym = pred_sym, min_ary = min_ary,
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1476
                           max_ary = ary, types = [T], in_conj = conj_fact})
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1477
                          sym_tab
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1478
                    end)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1479
               end
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1480
           | IVar (_, T) => add_universal_var T accum
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1481
           | IAbs ((_, T), tm) =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1482
             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
  1483
           | _ => accum)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1484
          |> fold (add_iterm_syms conj_fact false) args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1485
        end
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1486
    fun add_fact_syms conj_fact =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1487
      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
  1488
  in
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1489
    ((false, []), Symtab.empty)
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1490
    |> fold (add_fact_syms true) conjs
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1491
    |> fold (add_fact_syms false) facts
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1492
    |> snd
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1493
    |> fold Symtab.update (default_sym_tab_entries type_enc)
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  1494
  end
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1495
44772
blanchet
parents: 44771
diff changeset
  1496
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
  1497
  case Symtab.lookup sym_tab s of
42574
blanchet
parents: 42573
diff changeset
  1498
    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
  1499
  | NONE =>
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1500
    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
  1501
      SOME s =>
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1502
      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
  1503
        if s = predicator_name then 1
4e2d6c1e5392 more work on parsing LEO-II proofs without lambdas
blanchet
parents: 42963
diff changeset
  1504
        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
  1505
        else if s = type_guard_name then 1
42557
ae0deb39a254 fixed min-arity computation when "explicit_apply" is specified
blanchet
parents: 42556
diff changeset
  1506
        else 0
42547
b5eec0c99528 fixed arity of special constants if "explicit_apply" is set
blanchet
parents: 42546
diff changeset
  1507
      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
  1508
    | NONE => 0
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1509
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1510
(* 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
  1511
   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
  1512
   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
  1513
   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
  1514
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
  1515
  case Symtab.lookup sym_tab s of
42574
blanchet
parents: 42573
diff changeset
  1516
    SOME ({pred_sym, min_ary, max_ary, ...} : sym_info) =>
blanchet
parents: 42573
diff changeset
  1517
    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
  1518
  | NONE => false
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1519
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1520
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
  1521
val predicator_combconst =
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
  1522
  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
  1523
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1524
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
  1525
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
  1526
46410
78ff6a886b50 made sure to filter type args also for "uncurried alias" equations
blanchet
parents: 46409
diff changeset
  1527
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
  1528
  let
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1529
    val head_T = ityp_of head
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1530
    val (arg_T, res_T) = dest_funT head_T
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1531
    val app =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1532
      IConst (app_op, head_T --> head_T, [arg_T, res_T])
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1533
      |> mangle_type_args_in_iterm format type_enc
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1534
  in list_app app [head, arg] end
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1535
46400
9ce354a77908 don't introduce new symbols in helpers -- makes problems unprovable
blanchet
parents: 46399
diff changeset
  1536
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
  1537
                       uncurried_aliases =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1538
  let
46410
78ff6a886b50 made sure to filter type args also for "uncurried alias" equations
blanchet
parents: 46409
diff changeset
  1539
    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
  1540
    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
  1541
    fun introduce_app_ops tm =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1542
      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
  1543
        case head of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1544
          IConst (name as (s, _), T, T_args) =>
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  1545
          if uncurried_aliases andalso String.isPrefix const_prefix s then
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1546
            let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1547
              val ary = length args
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  1548
              val name = name |> ary > min_ary_of sym_tab s
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  1549
                                 ? aliased_uncurried ary
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1550
            in list_app (IConst (name, T, T_args)) args end
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1551
          else
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1552
            args |> chop (min_ary_of sym_tab s)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1553
                 |>> list_app head |-> list_app_ops
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1554
        | _ => list_app_ops head args
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1555
      end
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1556
    fun introduce_predicators tm =
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1557
      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
  1558
        (IConst ((s, _), _, _), _) =>
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1559
        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
  1560
      | _ => predicator tm
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1561
    val do_iterm =
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1562
      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
  1563
      ? (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
  1564
      #> 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
  1565
  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
  1566
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
  1567
(** 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
  1568
44450
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1569
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
  1570
val ftrue = @{lemma "fTrue" by (unfold fTrue_def) fast}
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1571
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1572
(* 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
  1573
val helper_table =
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1574
  [(("COMBI", false), @{thms Meson.COMBI_def}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1575
   (("COMBK", false), @{thms Meson.COMBK_def}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1576
   (("COMBB", false), @{thms Meson.COMBB_def}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1577
   (("COMBC", false), @{thms Meson.COMBC_def}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1578
   (("COMBS", false), @{thms Meson.COMBS_def}),
44450
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1579
   ((predicator_name, false), [not_ffalse, ftrue]),
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1580
   (("fFalse", false), [not_ffalse]),
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1581
   (("fFalse", true), @{thms True_or_False}),
44450
d848dd7b21f4 fixed "hBOOL" of existential variables, and generate more helpers
blanchet
parents: 44418
diff changeset
  1582
   (("fTrue", false), [ftrue]),
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1583
   (("fTrue", true), @{thms True_or_False}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1584
   (("fNot", false),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1585
    @{thms fNot_def [THEN Meson.iff_to_disjD, THEN conjunct1]
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1586
           fNot_def [THEN Meson.iff_to_disjD, THEN conjunct2]}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1587
   (("fconj", false),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1588
    @{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
  1589
        by (unfold fconj_def) fast+}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1590
   (("fdisj", false),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1591
    @{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
  1592
        by (unfold fdisj_def) fast+}),
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1593
   (("fimplies", false),
43210
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1594
    @{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
  1595
        by (unfold fimplies_def) fast+}),
43678
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
  1596
   (("fequal", true),
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
  1597
    (* 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
  1598
       However, this is done so for backward compatibility: Including the
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
  1599
       equality helpers by default in Metis breaks a few existing proofs. *)
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
  1600
    @{thms fequal_def [THEN Meson.iff_to_disjD, THEN conjunct1]
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
  1601
           fequal_def [THEN Meson.iff_to_disjD, THEN conjunct2]}),
44003
0a0ee31ec20a added helpers for "All" and "Ex"
blanchet
parents: 44001
diff changeset
  1602
   (* Partial characterization of "fAll" and "fEx". A complete characterization
0a0ee31ec20a added helpers for "All" and "Ex"
blanchet
parents: 44001
diff changeset
  1603
      would require the axiom of choice for replay with Metis. *)
0a0ee31ec20a added helpers for "All" and "Ex"
blanchet
parents: 44001
diff changeset
  1604
   (("fAll", false), [@{lemma "~ fAll P | P x" by (auto simp: fAll_def)}]),
0a0ee31ec20a added helpers for "All" and "Ex"
blanchet
parents: 44001
diff changeset
  1605
   (("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
  1606
   (("If", true), @{thms if_True if_False True_or_False})]
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1607
  |> map (apsnd (map zero_var_indexes))
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1608
45364
d00339ae7fff repaired quantification over type variables for non-TFF1/THF encodings
blanchet
parents: 45316
diff changeset
  1609
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
  1610
  | atype_of_type_vars _ = NONE
d00339ae7fff repaired quantification over type variables for non-TFF1/THF encodings
blanchet
parents: 45316
diff changeset
  1611
45920
ddbe94f7242c ensure TPTP FOF/TFF/THF formulas are close
blanchet
parents: 45875
diff changeset
  1612
fun bound_tvars type_enc sorts Ts =
ddbe94f7242c ensure TPTP FOF/TFF/THF formulas are close
blanchet
parents: 45875
diff changeset
  1613
  (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
  1614
  #> mk_aquant AForall
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1615
        (map_filter (fn TVar (x as (s, _), _) =>
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1616
                        SOME ((make_schematic_type_var x, s),
45364
d00339ae7fff repaired quantification over type variables for non-TFF1/THF encodings
blanchet
parents: 45316
diff changeset
  1617
                              atype_of_type_vars type_enc)
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  1618
                      | _ => NONE) Ts)
44404
3111af540141 tuning, plus started implementing tag equation generation for existential variables
blanchet
parents: 44403
diff changeset
  1619
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1620
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
  1621
  (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
  1622
   else AAtom (ATerm (`I tptp_equal, [tm1, tm2])))
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1623
  |> mk_aquant AForall bounds
45377
blanchet
parents: 45364
diff changeset
  1624
  |> close_formula_universally
45920
ddbe94f7242c ensure TPTP FOF/TFF/THF formulas are close
blanchet
parents: 45875
diff changeset
  1625
  |> bound_tvars type_enc true atomic_Ts
44404
3111af540141 tuning, plus started implementing tag equation generation for existential variables
blanchet
parents: 44403
diff changeset
  1626
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1627
val helper_rank = default_rank
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1628
val min_rank = 9 * helper_rank div 10
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1629
val max_rank = 4 * min_rank
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1630
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1631
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
  1632
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
  1633
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
  1634
45301
866b075aa99b added sorted DFG output for coming version of SPASS
blanchet
parents: 45299
diff changeset
  1635
fun type_tag_idempotence_fact format 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
  1636
  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
  1637
    fun var s = ATerm (`I s, [])
44408
30ea62ab4f16 made reconstruction of type tag equalities "\?x = \?x" reliable
blanchet
parents: 44406
diff changeset
  1638
    fun tag tm = ATerm (type_tag, [var "A", tm])
30ea62ab4f16 made reconstruction of type tag equalities "\?x = \?x" reliable
blanchet
parents: 44406
diff changeset
  1639
    val tagged_var = tag (var "X")
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
  1640
  in
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
  1641
    Formula (type_tag_idempotence_helper_name, Axiom,
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1642
             eq_formula type_enc [] [] false (tag tagged_var) tagged_var,
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1643
             NONE, isabelle_info format spec_eqN 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
  1644
  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
  1645
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  1646
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
  1647
  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
  1648
  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
  1649
  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
  1650
43858
be41d12de6fa simplify code -- there are no lambdas in helpers anyway
blanchet
parents: 43857
diff changeset
  1651
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
  1652
  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
  1653
    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
  1654
    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
  1655
      val thy = Proof_Context.theory_of ctxt
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1656
      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
  1657
      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
  1658
        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
  1659
        (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
  1660
        (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
  1661
         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
  1662
      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
  1663
        let val t = prop_of th in
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1664
          if should_specialize_helper type_enc t then
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1665
            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
  1666
                types
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1667
          else
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1668
            [t]
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1669
        end
46339
6268c5b3efdc generate left-to-right rewrite tag for combinator helpers for SPASS 3.8
blanchet
parents: 46338
diff changeset
  1670
        |> tag_list 1
46393
blanchet
parents: 46392
diff changeset
  1671
        |> map (fn (k, t) =>
blanchet
parents: 46392
diff changeset
  1672
                   ((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
  1673
      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
  1674
      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
  1675
    in
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1676
      helper_table
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
  1677
      |> 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
  1678
                  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
  1679
                     (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
  1680
                    []
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
                  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
  1682
                    ths ~~ (1 upto length ths)
43628
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
  1683
                    |> 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
  1684
                    |> 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
  1685
    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
  1686
  | NONE => []
43858
be41d12de6fa simplify code -- there are no lambdas in helpers anyway
blanchet
parents: 43857
diff changeset
  1687
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
  1688
  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
  1689
                  []
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
  1690
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1691
(***************************************************************)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1692
(* 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
  1693
(***************************************************************)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1694
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1695
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
  1696
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1697
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
  1698
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1699
(* 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
  1700
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
  1701
43093
blanchet
parents: 43092
diff changeset
  1702
fun classes_of_terms get_Ts =
43121
5df3777f376d make SML/NJ happier
blanchet
parents: 43120
diff changeset
  1703
  map (map snd o get_Ts)
43093
blanchet
parents: 43092
diff changeset
  1704
  #> List.foldl add_classes Symtab.empty
blanchet
parents: 43092
diff changeset
  1705
  #> delete_type #> Symtab.keys
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1706
44121
44adaa6db327 old term operations are legacy;
wenzelm
parents: 44097
diff changeset
  1707
val tfree_classes_of_terms = classes_of_terms Misc_Legacy.term_tfrees
44adaa6db327 old term operations are legacy;
wenzelm
parents: 44097
diff changeset
  1708
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
  1709
43622
blanchet
parents: 43572
diff changeset
  1710
fun fold_type_constrs f (Type (s, Ts)) x =
blanchet
parents: 43572
diff changeset
  1711
    fold (fold_type_constrs f) Ts (f (s, x))
43189
blanchet
parents: 43188
diff changeset
  1712
  | fold_type_constrs _ _ x = x
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1713
43907
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
  1714
(* 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
  1715
   needed. *)
43189
blanchet
parents: 43188
diff changeset
  1716
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
  1717
  let
43188
0c36ae874fcc fixed detection of Skolem constants in type construction detection code
blanchet
parents: 43185
diff changeset
  1718
    fun add (Const (@{const_name Meson.skolem}, _) $ _) = I
43181
cd3b7798ecc2 don't stumble on Skolem names
blanchet
parents: 43179
diff changeset
  1719
      | 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
  1720
      | add (Const x) =
1b333e4173a2 drop more type arguments soundly, when they can be deduced from the arg types
blanchet
parents: 44634
diff changeset
  1721
        x |> robust_const_typargs thy |> fold (fold_type_constrs set_insert)
43181
cd3b7798ecc2 don't stumble on Skolem names
blanchet
parents: 43179
diff changeset
  1722
      | add (Abs (_, _, u)) = add u
cd3b7798ecc2 don't stumble on Skolem names
blanchet
parents: 43179
diff changeset
  1723
      | add _ = I
cd3b7798ecc2 don't stumble on Skolem names
blanchet
parents: 43179
diff changeset
  1724
  in add end
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
  1725
43189
blanchet
parents: 43188
diff changeset
  1726
fun type_constrs_of_terms thy ts =
blanchet
parents: 43188
diff changeset
  1727
  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
  1728
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1729
fun extract_lambda_def (Const (@{const_name HOL.eq}, _) $ t $ u) =
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1730
    let val (head, args) = strip_comb t in
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1731
      (head |> dest_Const |> fst,
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1732
       fold_rev (fn t as Var ((s, _), T) =>
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1733
                    (fn u => Abs (s, T, abstract_over (t, u)))
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1734
                  | _ => raise Fail "expected Var") args u)
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1735
    end
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1736
  | extract_lambda_def _ = raise Fail "malformed lifted lambda"
45508
b216dc1b3630 started implementing lambda-lifting in Metis
blanchet
parents: 45401
diff changeset
  1737
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1738
fun trans_lams_from_string ctxt type_enc lam_trans =
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1739
  if lam_trans = no_lamsN then
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1740
    rpair []
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1741
  else if lam_trans = hide_lamsN then
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1742
    lift_lams ctxt type_enc ##> K []
46365
547d1a1dcaf6 rename lambda translation schemes
blanchet
parents: 46341
diff changeset
  1743
  else if lam_trans = liftingN orelse lam_trans = lam_liftingN then
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1744
    lift_lams ctxt type_enc
46365
547d1a1dcaf6 rename lambda translation schemes
blanchet
parents: 46341
diff changeset
  1745
  else if lam_trans = combsN then
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1746
    map (introduce_combinators ctxt) #> rpair []
46365
547d1a1dcaf6 rename lambda translation schemes
blanchet
parents: 46341
diff changeset
  1747
  else if lam_trans = combs_and_liftingN then
547d1a1dcaf6 rename lambda translation schemes
blanchet
parents: 46341
diff changeset
  1748
    lift_lams_part_1 ctxt type_enc
547d1a1dcaf6 rename lambda translation schemes
blanchet
parents: 46341
diff changeset
  1749
    ##> maps (fn t => [t, introduce_combinators ctxt (intentionalize_def t)])
547d1a1dcaf6 rename lambda translation schemes
blanchet
parents: 46341
diff changeset
  1750
    #> lift_lams_part_2
46368
ded0390eceae implemented new lambda translations scheme
blanchet
parents: 46365
diff changeset
  1751
  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
  1752
    lift_lams_part_1 ctxt type_enc
46368
ded0390eceae implemented new lambda translations scheme
blanchet
parents: 46365
diff changeset
  1753
    ##> 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
  1754
                       @{term "op =::bool => bool => bool"} => t
ded0390eceae implemented new lambda translations scheme
blanchet
parents: 46365
diff changeset
  1755
                     | _ => introduce_combinators ctxt (intentionalize_def t))
45554
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
  1756
    #> lift_lams_part_2
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1757
  else if lam_trans = keep_lamsN then
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1758
    map (Envir.eta_contract) #> rpair []
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1759
  else
45519
cd6e78cb6ee8 make metis reconstruction handling more flexible
blanchet
parents: 45516
diff changeset
  1760
    error ("Unknown lambda translation scheme: " ^ quote lam_trans ^ ".")
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1761
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1762
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
  1763
                       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
  1764
  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
  1765
    val thy = Proof_Context.theory_of ctxt
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1766
    val trans_lams = trans_lams_from_string ctxt type_enc lam_trans
43861
a08c591bdcdf more refactoring of preprocessing
blanchet
parents: 43860
diff changeset
  1767
    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
  1768
    (* 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
  1769
       boost an ATP's performance (for some reason). *)
43192
9c29a00f2970 avoid renumbering hypotheses
blanchet
parents: 43189
diff changeset
  1770
    val hyp_ts =
9c29a00f2970 avoid renumbering hypotheses
blanchet
parents: 43189
diff changeset
  1771
      hyp_ts
9c29a00f2970 avoid renumbering hypotheses
blanchet
parents: 43189
diff changeset
  1772
      |> 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
  1773
    val facts = facts |> map (apsnd (pair Axiom))
58a7b3fdc193 fixed lambda-liftg: must ensure the formulas are in close form
blanchet
parents: 43863
diff changeset
  1774
    val conjs =
46385
0ccf458a3633 third attempt at lambda lifting that works for both Sledgehammer and Metis (cf. dce6c3a460a9)
blanchet
parents: 46384
diff changeset
  1775
      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
  1776
      |> map (apsnd freeze_term)
46340
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1777
      |> map2 (pair o rpair (Local, General) o string_of_int)
cac402c486b0 separate orthogonal components
blanchet
parents: 46339
diff changeset
  1778
              (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
  1779
    val ((conjs, facts), lam_facts) =
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1780
      (conjs, facts)
46093
blanchet
parents: 46071
diff changeset
  1781
      |> presimp ? pairself (map (apsnd (uncurry (presimp_prop ctxt))))
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1782
      |> (if lam_trans = no_lamsN then
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1783
            rpair []
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1784
          else
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1785
            op @
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  1786
            #> preprocess_abstractions_in_terms trans_lams
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  1787
            #>> chop (length conjs))
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  1788
    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
  1789
    val (fact_names, facts) =
43864
58a7b3fdc193 fixed lambda-liftg: must ensure the formulas are in close form
blanchet
parents: 43863
diff changeset
  1790
      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
  1791
      |> 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
  1792
                        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
  1793
                        |> Option.map (pair name))
43861
a08c591bdcdf more refactoring of preprocessing
blanchet
parents: 43860
diff changeset
  1794
      |> ListPair.unzip
46375
d724066ff3d0 reverted e2b1a86d59fc -- broke Metis's lambda-lifting
blanchet
parents: 46371
diff changeset
  1795
    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
  1796
    val lam_facts =
09ad83de849c don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents: 45551
diff changeset
  1797
      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
  1798
    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
  1799
    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
  1800
    val supers = tvar_classes_of_terms all_ts
43189
blanchet
parents: 43188
diff changeset
  1801
    val tycons = type_constrs_of_terms thy all_ts
43861
a08c591bdcdf more refactoring of preprocessing
blanchet
parents: 43860
diff changeset
  1802
    val (supers, arity_clauses) =
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  1803
      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
  1804
      else make_arity_clauses thy tycons supers
43861
a08c591bdcdf more refactoring of preprocessing
blanchet
parents: 43860
diff changeset
  1805
    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
  1806
  in
45508
b216dc1b3630 started implementing lambda-lifting in Metis
blanchet
parents: 45401
diff changeset
  1807
    (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
  1808
     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
  1809
  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
  1810
44495
4c2242c8a96c added choice operator output for
nik
parents: 44494
diff changeset
  1811
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
  1812
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
  1813
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
  1814
  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
  1815
        |> 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
  1816
43421
926bfe067a32 fixed soundness bug related to extensionality
blanchet
parents: 43401
diff changeset
  1817
fun is_var_positively_naked_in_term _ (SOME false) _ accum = accum
926bfe067a32 fixed soundness bug related to extensionality
blanchet
parents: 43401
diff changeset
  1818
  | 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
  1819
    accum orelse (is_tptp_equal s andalso member (op =) tms (ATerm (name, [])))
43692
264881a20f50 make SML/NJ happy + tuning
blanchet
parents: 43678
diff changeset
  1820
  | 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
  1821
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1822
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
  1823
  is_var_positively_naked_in_term name pos tm accum orelse
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1824
  let
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1825
    val var = ATerm (name, [])
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1826
    fun is_nasty_in_term (ATerm (_, [])) = false
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1827
      | is_nasty_in_term (ATerm ((s, _), tms)) =
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1828
        let
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1829
          val ary = length tms
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1830
          val polym_constr = member (op =) polym_constrs s
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1831
          val ghosts = ghost_type_args thy s ary
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1832
        in
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1833
          exists (fn (j, tm) =>
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1834
                     if polym_constr then
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1835
                       member (op =) ghosts j andalso
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1836
                       (tm = var orelse is_nasty_in_term tm)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1837
                     else
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1838
                       tm = var andalso member (op =) ghosts j)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1839
                 (0 upto ary - 1 ~~ tms)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1840
          orelse (not polym_constr andalso exists is_nasty_in_term tms)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1841
        end
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1842
      | is_nasty_in_term _ = true
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1843
  in is_nasty_in_term tm end
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1844
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1845
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
  1846
                                name =
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1847
    (case granularity_of_type_level level of
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1848
       All_Vars => true
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1849
     | Positively_Naked_Vars =>
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1850
       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
  1851
     | Ghost_Type_Arg_Vars =>
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1852
       formula_fold pos (is_var_ghost_type_arg_in_term thy polym_constrs name)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1853
                    phi false)
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1854
  | should_guard_var_in_formula _ _ _ _ _ _ _ = true
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1855
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1856
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
  1857
44405
6fe1a89bb69a generate tag equations for existential variables
blanchet
parents: 44404
diff changeset
  1858
fun should_generate_tag_bound_decl _ _ _ (SOME true) _ = false
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  1859
  | should_generate_tag_bound_decl ctxt mono (Tags (_, level)) _ T =
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1860
    granularity_of_type_level level <> All_Vars andalso
44782
blanchet
parents: 44774
diff changeset
  1861
    should_encode_type ctxt mono level T
44405
6fe1a89bb69a generate tag equations for existential variables
blanchet
parents: 44404
diff changeset
  1862
  | should_generate_tag_bound_decl _ _ _ _ _ = false
44404
3111af540141 tuning, plus started implementing tag equation generation for existential variables
blanchet
parents: 44403
diff changeset
  1863
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1864
fun mk_aterm format type_enc name T_args args =
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1865
  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
  1866
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1867
fun do_bound_type ctxt format mono type_enc =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1868
  case type_enc of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1869
    Simple_Types (_, _, level) =>
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1870
    fused_type ctxt mono level 0
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1871
    #> ho_type_from_typ format type_enc false 0 #> SOME
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1872
  | _ => K NONE
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1873
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1874
fun tag_with_type ctxt format mono type_enc pos T tm =
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1875
  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
  1876
  |> mangle_type_args_in_iterm format type_enc
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1877
  |> ho_term_from_iterm ctxt format mono type_enc pos
43692
264881a20f50 make SML/NJ happy + tuning
blanchet
parents: 43678
diff changeset
  1878
  |> (fn ATerm (s, tms) => ATerm (s, tms @ [tm])
264881a20f50 make SML/NJ happy + tuning
blanchet
parents: 43678
diff changeset
  1879
       | _ => raise Fail "unexpected lambda-abstraction")
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1880
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
  1881
  let
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1882
    fun term site u =
42962
3b50fdeb6cfc started adding support for THF output (but no lambdas)
blanchet
parents: 42956
diff changeset
  1883
      let
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1884
        val (head, args) = strip_iterm_comb u
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1885
        val pos =
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1886
          case site of
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1887
            Top_Level pos => pos
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1888
          | Eq_Arg pos => pos
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  1889
          | _ => NONE
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1890
        val t =
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1891
          case head of
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1892
            IConst (name as (s, _), _, T_args) =>
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1893
            let
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1894
              val arg_site = if is_tptp_equal s then Eq_Arg pos else Elsewhere
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  1895
            in
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1896
              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
  1897
            end
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1898
          | IVar (name, _) =>
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1899
            map (term Elsewhere) args |> mk_aterm format type_enc name []
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1900
          | IAbs ((name, T), tm) =>
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1901
            AAbs ((name, ho_type_from_typ format type_enc true 0 T),
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1902
                  term Elsewhere tm)
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1903
          | IApp _ => raise Fail "impossible \"IApp\""
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1904
        val T = ityp_of u
42962
3b50fdeb6cfc started adding support for THF output (but no lambdas)
blanchet
parents: 42956
diff changeset
  1905
      in
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1906
        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
  1907
          tag_with_type ctxt format mono type_enc pos T t
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1908
        else
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1909
          t
42962
3b50fdeb6cfc started adding support for THF output (but no lambdas)
blanchet
parents: 42956
diff changeset
  1910
      end
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1911
  in term o Top_Level end
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1912
and formula_from_iformula ctxt polym_constrs format mono type_enc
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1913
                          should_guard_var =
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  1914
  let
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1915
    val thy = Proof_Context.theory_of ctxt
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  1916
    val level = level_of_type_enc type_enc
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1917
    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
  1918
    fun do_out_of_bound_type pos phi universal (name, T) =
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  1919
      if should_guard_type ctxt mono type_enc
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1920
             (fn () => should_guard_var thy polym_constrs level pos phi
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  1921
                                        universal name) T then
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1922
        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
  1923
        |> 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
  1924
        |> do_term pos |> AAtom |> SOME
44405
6fe1a89bb69a generate tag equations for existential variables
blanchet
parents: 44404
diff changeset
  1925
      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
  1926
        let
6fe1a89bb69a generate tag equations for existential variables
blanchet
parents: 44404
diff changeset
  1927
          val var = ATerm (name, [])
45949
70b9d1e9fddc killed "guard@?" encodings -- they were found to be unsound
blanchet
parents: 45948
diff changeset
  1928
          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
  1929
        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
  1930
      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
  1931
        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
  1932
    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
  1933
        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
  1934
          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
  1935
          val universal = Option.map (q = AExists ? not) pos
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  1936
          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
  1937
        in
42834
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1938
          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
  1939
                                        | 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
  1940
                  (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
  1941
                      (map_filter
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1942
                           (fn (_, NONE) => NONE
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1943
                             | (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
  1944
                               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
  1945
                           xs)
42834
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1946
                      phi)
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1947
        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
  1948
      | 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
  1949
      | 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
  1950
  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
  1951
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
  1952
(* 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
  1953
   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
  1954
   the remote provers might care. *)
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1955
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
  1956
        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
  1957
  (prefix ^ (if freshen then string_of_int j ^ "_" else "") ^ encode name, kind,
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1958
   iformula
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1959
   |> formula_from_iformula ctxt polym_constrs format mono type_enc
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1960
          should_guard_var_in_formula (if pos then SOME true else NONE)
45377
blanchet
parents: 45364
diff changeset
  1961
   |> close_formula_universally
45920
ddbe94f7242c ensure TPTP FOF/TFF/THF formulas are close
blanchet
parents: 45875
diff changeset
  1962
   |> 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
  1963
   NONE,
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1964
   let val rank = rank j in
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1965
     case snd stature of
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1966
       Intro => isabelle_info format introN rank
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1967
     | Elim => isabelle_info format elimN rank
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1968
     | Simp => isabelle_info format simpN rank
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1969
     | Spec_Eq => isabelle_info format spec_eqN rank
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1970
     | _ => isabelle_info format "" rank
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1971
   end)
43493
bdb11c68f142 generate type predicates for existentials/skolems, otherwise some problems might not be provable
blanchet
parents: 43423
diff changeset
  1972
  |> 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
  1973
45301
866b075aa99b added sorted DFG output for coming version of SPASS
blanchet
parents: 45299
diff changeset
  1974
fun formula_line_for_class_rel_clause format type_enc
44593
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
  1975
        ({name, subclass, superclass, ...} : class_rel_clause) =
44622
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  1976
  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
  1977
    Formula (class_rel_clause_prefix ^ ascii_of name, Axiom,
44622
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  1978
             AConn (AImplies,
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  1979
                    [type_class_formula type_enc subclass ty_arg,
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  1980
                     type_class_formula type_enc superclass ty_arg])
45830
45a5b6edd4f7 added missing quantifier
blanchet
parents: 45829
diff changeset
  1981
             |> mk_aquant AForall
45a5b6edd4f7 added missing quantifier
blanchet
parents: 45829
diff changeset
  1982
                          [(tvar_a_name, atype_of_type_vars type_enc)],
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1983
             NONE, isabelle_info format 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
  1984
  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
  1985
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  1986
fun formula_from_arity_atom type_enc (class, t, args) =
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  1987
  ATerm (t, map (fn arg => ATerm (arg, [])) args)
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  1988
  |> 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
  1989
45301
866b075aa99b added sorted DFG output for coming version of SPASS
blanchet
parents: 45299
diff changeset
  1990
fun formula_line_for_arity_clause format type_enc
45364
d00339ae7fff repaired quantification over type variables for non-TFF1/THF encodings
blanchet
parents: 45316
diff changeset
  1991
        ({name, prem_atoms, concl_atom} : arity_clause) =
43495
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
  1992
  Formula (arity_clause_prefix ^ name, Axiom,
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  1993
           mk_ahorn (map (formula_from_arity_atom type_enc) prem_atoms)
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  1994
                    (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
  1995
           |> mk_aquant AForall
d00339ae7fff repaired quantification over type variables for non-TFF1/THF encodings
blanchet
parents: 45316
diff changeset
  1996
                  (map (rpair (atype_of_type_vars type_enc)) (#3 concl_atom)),
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  1997
           NONE, isabelle_info format 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
  1998
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  1999
fun formula_line_for_conjecture ctxt polym_constrs format mono type_enc
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  2000
        ({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
  2001
  Formula (conjecture_prefix ^ name, kind,
45316
08d84bdd5b37 improve handling of bound type variables (esp. for TFF1)
blanchet
parents: 45315
diff changeset
  2002
           iformula
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2003
           |> 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
  2004
                  should_guard_var_in_formula (SOME false)
45377
blanchet
parents: 45364
diff changeset
  2005
           |> close_formula_universally
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2006
           |> 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
  2007
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2008
fun formula_line_for_free_type j phi =
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2009
  Formula (tfree_clause_prefix ^ string_of_int j, Hypothesis, phi, NONE, [])
44626
a40b713232c8 make SML/NJ happy
blanchet
parents: 44625
diff changeset
  2010
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
  2011
  let
44625
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2012
    val phis =
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2013
      fold (union (op =)) (map #atomic_types facts) []
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2014
      |> formulas_for_types type_enc add_sorts_on_tfree
4a1132815a70 more tuning
blanchet
parents: 44624
diff changeset
  2015
  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
  2016
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
  2017
(** 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
  2018
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
  2019
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
  2020
  let val name as (s, _) = `make_type_class s in
44622
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2021
    Decl (sym_decl_prefix ^ s, name,
45779
eb7b74c7a69b updated TFF1 support
blanchet
parents: 45570
diff changeset
  2022
          if order = First_Order then
eb7b74c7a69b updated TFF1 support
blanchet
parents: 45570
diff changeset
  2023
            ATyAbs ([tvar_a_name],
eb7b74c7a69b updated TFF1 support
blanchet
parents: 45570
diff changeset
  2024
                    if avoid_first_order_ghost_type_vars then
eb7b74c7a69b updated TFF1 support
blanchet
parents: 45570
diff changeset
  2025
                      AFun (a_itself_atype, bool_atype)
eb7b74c7a69b updated TFF1 support
blanchet
parents: 45570
diff changeset
  2026
                    else
eb7b74c7a69b updated TFF1 support
blanchet
parents: 45570
diff changeset
  2027
                      bool_atype)
44622
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2028
          else
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
  2029
            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
  2030
  end
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2031
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2032
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
  2033
  case type_enc of
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
  2034
    Simple_Types (order, Polymorphic, _) =>
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
  2035
    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
  2036
  | _ => []
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2037
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2038
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
  2039
                             (conjs, facts, extra_tms) =
42574
blanchet
parents: 42573
diff changeset
  2040
  let
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2041
    fun add_iterm_syms tm =
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  2042
      let val (head, args) = strip_iterm_comb tm in
42574
blanchet
parents: 42573
diff changeset
  2043
        (case head of
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  2044
           IConst ((s, s'), T, T_args) =>
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2045
           let
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2046
             val (pred_sym, in_conj) =
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2047
               case Symtab.lookup sym_tab s of
44853
e3310cdb4e48 made SML/NJ happy
blanchet
parents: 44829
diff changeset
  2048
                 SOME ({pred_sym, in_conj, ...} : sym_info) =>
e3310cdb4e48 made SML/NJ happy
blanchet
parents: 44829
diff changeset
  2049
                 (pred_sym, in_conj)
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2050
               | NONE => (false, false)
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2051
             val decl_sym =
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2052
               (case type_enc of
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2053
                  Guards _ => not pred_sym
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2054
                | _ => true) andalso
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2055
               is_tptp_user_symbol s
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2056
           in
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2057
             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
  2058
               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
  2059
                   (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
  2060
                                         in_conj))
42574
blanchet
parents: 42573
diff changeset
  2061
             else
blanchet
parents: 42573
diff changeset
  2062
               I
blanchet
parents: 42573
diff changeset
  2063
           end
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2064
         | IAbs (_, tm) => add_iterm_syms tm
42574
blanchet
parents: 42573
diff changeset
  2065
         | _ => I)
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2066
        #> fold add_iterm_syms args
42574
blanchet
parents: 42573
diff changeset
  2067
      end
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2068
    val add_fact_syms = K add_iterm_syms |> formula_fold NONE |> fact_lift
43966
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2069
    fun add_formula_var_types (AQuant (_, xs, phi)) =
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2070
        fold (fn (_, SOME T) => insert_type ctxt I T | _ => I) xs
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2071
        #> add_formula_var_types phi
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2072
      | add_formula_var_types (AConn (_, phis)) =
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2073
        fold add_formula_var_types phis
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2074
      | add_formula_var_types _ = I
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2075
    fun var_types () =
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2076
      if polymorphism_of_type_enc type_enc = Polymorphic then [tvar_a]
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2077
      else fold (fact_lift add_formula_var_types) (conjs @ facts) []
bb11faa6a79e declare "undefined" constant
blanchet
parents: 43961
diff changeset
  2078
    fun add_undefined_const T =
43984
aefc5b046c1e mangle "undefined"
blanchet
parents: 43966
diff changeset
  2079
      let
aefc5b046c1e mangle "undefined"
blanchet
parents: 43966
diff changeset
  2080
        val (s, s') =
44622
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2081
          `(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
  2082
          |> (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
  2083
                Mangled_Type_Args => mangled_const_name format type_enc [T]
44001
2b75760fa75e no needless mangling
blanchet
parents: 43997
diff changeset
  2084
              | _ => I)
43984
aefc5b046c1e mangle "undefined"
blanchet
parents: 43966
diff changeset
  2085
      in
aefc5b046c1e mangle "undefined"
blanchet
parents: 43966
diff changeset
  2086
        Symtab.map_default (s, [])
aefc5b046c1e mangle "undefined"
blanchet
parents: 43966
diff changeset
  2087
                           (insert_type ctxt #3 (s', [T], T, false, 0, false))
aefc5b046c1e mangle "undefined"
blanchet
parents: 43966
diff changeset
  2088
      end
44622
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2089
    fun add_TYPE_const () =
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2090
      let val (s, s') = TYPE_name in
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2091
        Symtab.map_default (s, [])
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2092
            (insert_type ctxt #3
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2093
                         (s', [tvar_a], @{typ "'a itself"}, false, 0, false))
779f79ed0ddc avoid relying on dubious TFF1 feature
blanchet
parents: 44595
diff changeset
  2094
      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
  2095
  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
  2096
    Symtab.empty
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  2097
    |> is_type_enc_fairly_sound type_enc
44829
5a2cd5db0a11 fixed computation of "in_conj" for polymorphic encodings
blanchet
parents: 44814
diff changeset
  2098
       ? (fold (fold add_fact_syms) [conjs, facts]
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2099
          #> 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
  2100
          #> (case type_enc of
45829
0b19934792d2 remove needless declaration in TFF1 problems
blanchet
parents: 45828
diff changeset
  2101
                Simple_Types (First_Order, Polymorphic, _) =>
0b19934792d2 remove needless declaration in TFF1 problems
blanchet
parents: 45828
diff changeset
  2102
                if avoid_first_order_ghost_type_vars then add_TYPE_const ()
0b19934792d2 remove needless declaration in TFF1 problems
blanchet
parents: 45828
diff changeset
  2103
                else I
44786
815afb08c079 tweaking polymorphic TFF and THF output
blanchet
parents: 44785
diff changeset
  2104
              | Simple_Types _ => I
43985
33d8b99531c2 no need for existential witnesses for sorts in TFF and THF formats
blanchet
parents: 43984
diff changeset
  2105
              | _ => 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
  2106
  end
42533
dc81fe6b7a87 generate TFF type declarations in typed mode
blanchet
parents: 42531
diff changeset
  2107
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2108
(* 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
  2109
fun default_mono level =
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2110
  {maybe_finite_Ts = [@{typ bool}],
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2111
   surely_finite_Ts = [@{typ bool}],
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2112
   maybe_infinite_Ts = known_infinite_types,
44634
2ac4ff398bc3 make "sound" sound and "unsound" more sound, based on evaluation
blanchet
parents: 44626
diff changeset
  2113
   surely_infinite_Ts =
2ac4ff398bc3 make "sound" sound and "unsound" more sound, based on evaluation
blanchet
parents: 44626
diff changeset
  2114
     case level of
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  2115
       Noninf_Nonmono_Types (Strict, _) => []
44634
2ac4ff398bc3 make "sound" sound and "unsound" more sound, based on evaluation
blanchet
parents: 44626
diff changeset
  2116
     | _ => known_infinite_types,
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2117
   maybe_nonmono_Ts = [@{typ bool}]}
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2118
42685
7a5116bd63b7 documentation tuning
blanchet
parents: 42684
diff changeset
  2119
(* This inference is described in section 2.3 of Claessen et al.'s "Sorting it
7a5116bd63b7 documentation tuning
blanchet
parents: 42684
diff changeset
  2120
   out with monotonicity" paper presented at CADE 2011. *)
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2121
fun add_iterm_mononotonicity_info _ _ (SOME false) _ mono = mono
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2122
  | add_iterm_mononotonicity_info ctxt level _
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2123
        (IApp (IApp (IConst ((s, _), Type (_, [T, _]), _), tm1), tm2))
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2124
        (mono as {maybe_finite_Ts, surely_finite_Ts, maybe_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2125
                  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
  2126
    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
  2127
      case level of
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  2128
        Noninf_Nonmono_Types (strictness, _) =>
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2129
        if exists (type_instance ctxt T) surely_infinite_Ts orelse
44859
237ba63d6041 fixed definition of type intersection (soundness bug)
blanchet
parents: 44853
diff changeset
  2130
           member (type_equiv ctxt) maybe_finite_Ts T then
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2131
          mono
46301
e2e52c7d25c9 renamed "sound" option to "strict"
blanchet
parents: 46093
diff changeset
  2132
        else if is_type_kind_of_surely_infinite ctxt strictness
44500
dbd98b549597 make default unsound mode less unsound
blanchet
parents: 44499
diff changeset
  2133
                                                surely_infinite_Ts T then
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2134
          {maybe_finite_Ts = maybe_finite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2135
           surely_finite_Ts = surely_finite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2136
           maybe_infinite_Ts = maybe_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2137
           surely_infinite_Ts = surely_infinite_Ts |> insert_type ctxt I T,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2138
           maybe_nonmono_Ts = maybe_nonmono_Ts}
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2139
        else
44859
237ba63d6041 fixed definition of type intersection (soundness bug)
blanchet
parents: 44853
diff changeset
  2140
          {maybe_finite_Ts = maybe_finite_Ts |> insert (type_equiv ctxt) T,
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2141
           surely_finite_Ts = surely_finite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2142
           maybe_infinite_Ts = maybe_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2143
           surely_infinite_Ts = surely_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2144
           maybe_nonmono_Ts = maybe_nonmono_Ts |> insert_type ctxt I T}
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2145
      | Fin_Nonmono_Types _ =>
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2146
        if exists (type_instance ctxt T) surely_finite_Ts orelse
44859
237ba63d6041 fixed definition of type intersection (soundness bug)
blanchet
parents: 44853
diff changeset
  2147
           member (type_equiv ctxt) maybe_infinite_Ts T then
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2148
          mono
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2149
        else if is_type_surely_finite ctxt T then
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2150
          {maybe_finite_Ts = maybe_finite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2151
           surely_finite_Ts = surely_finite_Ts |> insert_type ctxt I T,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2152
           maybe_infinite_Ts = maybe_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2153
           surely_infinite_Ts = surely_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2154
           maybe_nonmono_Ts = maybe_nonmono_Ts |> insert_type ctxt I T}
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2155
        else
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2156
          {maybe_finite_Ts = maybe_finite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2157
           surely_finite_Ts = surely_finite_Ts,
44859
237ba63d6041 fixed definition of type intersection (soundness bug)
blanchet
parents: 44853
diff changeset
  2158
           maybe_infinite_Ts = maybe_infinite_Ts |> insert (type_equiv ctxt) T,
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2159
           surely_infinite_Ts = surely_infinite_Ts,
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2160
           maybe_nonmono_Ts = maybe_nonmono_Ts}
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2161
      | _ => mono
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2162
    else
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2163
      mono
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2164
  | add_iterm_mononotonicity_info _ _ _ _ mono = mono
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2165
fun add_fact_mononotonicity_info ctxt level
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2166
        ({kind, iformula, ...} : translated_formula) =
42834
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  2167
  formula_fold (SOME (kind <> Conjecture))
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2168
               (add_iterm_mononotonicity_info ctxt level) iformula
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2169
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
  2170
  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
  2171
    default_mono level
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2172
    |> is_type_level_monotonicity_based level
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2173
       ? 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
  2174
  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
  2175
44501
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2176
fun add_iformula_monotonic_types ctxt mono type_enc =
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2177
  let
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2178
    val level = level_of_type_enc type_enc
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2179
    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
  2180
    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
  2181
    fun add_args (IApp (tm1, tm2)) = add_args tm1 #> add_term tm2
7e3913e70846 improve completeness of polymorphic encodings
blanchet
parents: 44505
diff changeset
  2182
      | add_args _ = I
7e3913e70846 improve completeness of polymorphic encodings
blanchet
parents: 44505
diff changeset
  2183
    and add_term tm = add_type (ityp_of tm) #> add_args tm
44501
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2184
  in formula_fold NONE (K add_term) end
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2185
fun add_fact_monotonic_types ctxt mono type_enc =
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2186
  add_iformula_monotonic_types ctxt mono type_enc |> fact_lift
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2187
fun monotonic_types_for_facts ctxt mono type_enc facts =
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2188
  let val level = level_of_type_enc type_enc in
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2189
    [] |> (polymorphism_of_type_enc type_enc = Polymorphic andalso
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2190
           is_type_level_monotonicity_based level andalso
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2191
           granularity_of_type_level level <> Ghost_Type_Arg_Vars)
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2192
          ? fold (add_fact_monotonic_types ctxt mono type_enc) facts
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2193
  end
44501
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2194
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2195
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
  2196
  Formula (guards_sym_formula_prefix ^
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2197
           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
  2198
           Axiom,
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2199
           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
  2200
           |> 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
  2201
           |> AAtom
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2202
           |> formula_from_iformula ctxt [] format mono type_enc
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  2203
                                    always_guard_var_in_formula (SOME true)
45377
blanchet
parents: 45364
diff changeset
  2204
           |> close_formula_universally
45920
ddbe94f7242c ensure TPTP FOF/TFF/THF formulas are close
blanchet
parents: 45875
diff changeset
  2205
           |> bound_tvars type_enc true (atomic_types_of T),
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2206
           NONE, isabelle_info format introN helper_rank)
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2207
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2208
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
  2209
  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
  2210
    Formula (tags_sym_formula_prefix ^
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2211
             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
  2212
             Axiom,
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2213
             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
  2214
                  (tag_with_type ctxt format mono type_enc NONE T x_var) x_var,
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2215
             NONE, isabelle_info format spec_eqN helper_rank)
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2216
  end
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2217
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2218
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
  2219
  case type_enc of
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2220
    Simple_Types _ => []
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2221
  | Guards _ =>
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2222
    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
  2223
  | 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
  2224
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2225
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
  2226
                      (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
  2227
  let
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2228
    val thy = Proof_Context.theory_of ctxt
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2229
    val (T, T_args) =
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2230
      if null T_args then
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2231
        (T, [])
45511
9b0f8ca4388e continued implementation of lambda-lifting in Metis
blanchet
parents: 45509
diff changeset
  2232
      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
  2233
        SOME s' =>
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2234
        let
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2235
          val s' = s' |> invert_const
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2236
          val T = s' |> robust_const_type thy
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2237
        in (T, robust_const_typargs thy (s', T)) end
45509
624872fc47bf use consts, not frees, for lambda-lifting
blanchet
parents: 45508
diff changeset
  2238
      | 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
  2239
  in
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2240
    Decl (sym_decl_prefix ^ s, (s, s'),
44594
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2241
          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
  2242
            |> 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
  2243
            |> not (null T_args)
ae82943481e9 added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents: 44593
diff changeset
  2244
               ? 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
  2245
  end
42579
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2246
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2247
fun honor_conj_sym_kind in_conj conj_sym_kind =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2248
  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
  2249
  else (Axiom, I)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2250
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2251
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
  2252
                                     j (s', T_args, T, _, ary, in_conj) =
42579
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2253
  let
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2254
    val thy = Proof_Context.theory_of ctxt
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2255
    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
  2256
    val (arg_Ts, res_T) = chop_fun ary T
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2257
    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
  2258
    val bounds =
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  2259
      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
  2260
    val bound_Ts =
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2261
      if exists (curry (op =) dummyT) T_args then
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2262
        case level_of_type_enc type_enc of
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2263
          All_Types => map SOME arg_Ts
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2264
        | level =>
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2265
          if granularity_of_type_level level = Ghost_Type_Arg_Vars then
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2266
            let val ghosts = ghost_type_args thy s ary in
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2267
              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
  2268
                   (0 upto ary - 1) arg_Ts
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2269
            end
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2270
          else
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2271
            replicate ary NONE
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2272
      else
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2273
        replicate ary NONE
42579
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2274
  in
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
  2275
    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
  2276
             (if n > 1 then "_" ^ string_of_int j else ""), kind,
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  2277
             IConst ((s, s'), T, T_args)
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  2278
             |> 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
  2279
             |> type_guard_iterm format type_enc res_T
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
  2280
             |> AAtom |> mk_aquant AForall (bound_names ~~ bound_Ts)
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2281
             |> formula_from_iformula ctxt [] format mono type_enc
45948
f88f502d635f extend previous optimizations to guard-based encodings
blanchet
parents: 45947
diff changeset
  2282
                                      always_guard_var_in_formula (SOME true)
45377
blanchet
parents: 45364
diff changeset
  2283
             |> close_formula_universally
45920
ddbe94f7242c ensure TPTP FOF/TFF/THF formulas are close
blanchet
parents: 45875
diff changeset
  2284
             |> 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
  2285
             |> maybe_negate,
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2286
             NONE, isabelle_info format introN helper_rank)
42579
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2287
  end
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2288
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2289
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
  2290
        (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
  2291
  let
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2292
    val thy = Proof_Context.theory_of ctxt
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2293
    val level = level_of_type_enc type_enc
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2294
    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
  2295
    val ident_base =
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2296
      tags_sym_formula_prefix ^ s ^
43125
ddf63baabdec distinguish different kinds of typing informations in the fact name
blanchet
parents: 43121
diff changeset
  2297
      (if n > 1 then "_" ^ string_of_int j else "")
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2298
    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
  2299
    val (arg_Ts, res_T) = chop_fun ary T
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2300
    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
  2301
    val bounds = bound_names |> map (fn name => ATerm (name, []))
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
  2302
    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
  2303
    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
  2304
    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
  2305
    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
  2306
    val add_formula_for_res =
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2307
      if should_encode res_T then
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2308
        let
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2309
          val tagged_bounds =
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2310
            if grain = Ghost_Type_Arg_Vars then
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2311
              let val ghosts = ghost_type_args thy s ary in
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2312
                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
  2313
                     (0 upto ary - 1 ~~ arg_Ts) bounds
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2314
              end
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2315
            else
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2316
              bounds
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2317
        in
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2318
          cons (Formula (ident_base ^ "_res", kind,
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2319
                         eq (tag_with res_T (cst bounds)) (cst tagged_bounds),
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2320
                         NONE, isabelle_info format spec_eqN helper_rank))
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2321
        end
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2322
      else
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2323
        I
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2324
    fun add_formula_for_arg k =
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2325
      let val arg_T = nth arg_Ts k in
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2326
        if should_encode arg_T then
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2327
          case chop k bounds of
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2328
            (bounds1, bound :: bounds2) =>
42852
40649ab0cead honor "conj_sym_kind" also for tag symbol declarations
blanchet
parents: 42851
diff changeset
  2329
            cons (Formula (ident_base ^ "_arg" ^ string_of_int (k + 1), kind,
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2330
                           eq (cst (bounds1 @ tag_with arg_T bound :: bounds2))
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2331
                              (cst bounds),
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2332
                           NONE, isabelle_info format spec_eqN helper_rank))
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2333
          | _ => raise Fail "expected nonempty tail"
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2334
        else
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2335
          I
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2336
      end
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2337
  in
42834
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  2338
    [] |> not pred_sym ? add_formula_for_res
44814
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2339
       |> (Config.get ctxt type_tag_arguments andalso
52318464c73b also implemented ghost version of the tagged encodings
blanchet
parents: 44812
diff changeset
  2340
           grain = Positively_Naked_Vars)
44496
c1884789ff80 added config options to control two aspects of the translation, for evaluation purposes
blanchet
parents: 44495
diff changeset
  2341
          ? fold add_formula_for_arg (ary - 1 downto 0)
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2342
  end
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  2343
42836
9adf6b3965b3 code cleanup, better handling of corner cases
blanchet
parents: 42834
diff changeset
  2344
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
  2345
45780
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2346
fun rationalize_decls ctxt (decls as decl :: (decls' as _ :: _)) =
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2347
    let
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2348
      val T = result_type_of_decl decl
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2349
              |> map_type_tvar (fn (z, _) => TVar (z, HOLogic.typeS))
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2350
    in
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2351
      if forall (type_generalization ctxt T o result_type_of_decl) decls' then
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2352
        [decl]
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2353
      else
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2354
        decls
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2355
    end
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2356
  | rationalize_decls _ decls = decls
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2357
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2358
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
  2359
                                (s, decls) =
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  2360
  case type_enc of
45831
8f8fce7bd32b avoid multiple type decls in TFF (improves on cef82dc1462d)
blanchet
parents: 45830
diff changeset
  2361
    Simple_Types _ => [decl_line_for_sym ctxt format mono type_enc s (hd decls)]
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2362
  | Guards (_, level) =>
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2363
    let
45780
cef82dc1462d avoid multiple TFF1 declarations
blanchet
parents: 45779
diff changeset
  2364
      val decls = decls |> rationalize_decls ctxt
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2365
      val n = length decls
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2366
      val decls =
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2367
        decls |> filter (should_encode_type ctxt mono level
43401
e93dfcb53535 fixed soundness bug made more visible by previous change
blanchet
parents: 43399
diff changeset
  2368
                         o result_type_of_decl)
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2369
    in
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2370
      (0 upto length decls - 1, decls)
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2371
      |-> 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
  2372
                                                 type_enc n s)
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2373
    end
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2374
  | Tags (_, level) =>
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2375
    if granularity_of_type_level level = All_Vars then
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2376
      []
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2377
    else
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2378
      let val n = length decls in
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2379
        (0 upto n - 1 ~~ decls)
44811
0bff1a4228b3 started work on ghost type arg encoding
blanchet
parents: 44810
diff changeset
  2380
        |> 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
  2381
                                                 type_enc n s)
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2382
      end
42579
2552c09b1a72 implement the new ATP type system in Sledgehammer
blanchet
parents: 42577
diff changeset
  2383
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2384
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
  2385
                                     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
  2386
  let
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2387
    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
  2388
    val mono_lines =
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2389
      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
  2390
    val decl_lines =
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2391
      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
  2392
                             mono type_enc)
44396
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2393
               syms []
66b9b3fcd608 started cleaning up polymorphic monotonicity-based encodings, based on discussions with Nick Smallbone
blanchet
parents: 44394
diff changeset
  2394
  in mono_lines @ decl_lines end
42543
f9d402d144d4 declare TFF types so that SNARK can be used with types
blanchet
parents: 42542
diff changeset
  2395
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2396
fun pair_append (xs1, xs2) (ys1, ys2) = (xs1 @ ys1, xs2 @ ys2)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2397
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2398
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
  2399
        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
  2400
  let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2401
    fun do_alias ary =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2402
      let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2403
        val thy = Proof_Context.theory_of ctxt
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2404
        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
  2405
        val base_name = base_s0 |> `(make_fixed_const (SOME format))
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2406
        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
  2407
        val T_args = robust_const_typargs thy (base_s0, T)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2408
        val (base_name as (base_s, _), T_args) =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2409
          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
  2410
        val base_ary = min_ary_of sym_tab0 base_s
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2411
        fun do_const name = IConst (name, T, T_args)
46437
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2412
        val filter_ty_args =
46410
78ff6a886b50 made sure to filter type args also for "uncurried alias" equations
blanchet
parents: 46409
diff changeset
  2413
          filter_type_args_in_iterm thy monom_constrs type_enc
46437
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2414
        val ho_term_of =
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2415
          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
  2416
        val name1 as (s1, _) =
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2417
          base_name |> ary - 1 > base_ary ? aliased_uncurried (ary - 1)
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2418
        val name2 as (s2, _) = base_name |> aliased_uncurried ary
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2419
        val (arg_Ts, _) = chop_fun ary T
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2420
        val bound_names =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2421
          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
  2422
        val bounds = bound_names ~~ arg_Ts
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2423
        val (first_bounds, last_bound) =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2424
          bounds |> map (fn (name, T) => IConst (name, T, [])) |> split_last
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2425
        val tm1 =
46410
78ff6a886b50 made sure to filter type args also for "uncurried alias" equations
blanchet
parents: 46409
diff changeset
  2426
          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
  2427
                    last_bound
46437
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2428
          |> filter_ty_args
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2429
        val tm2 =
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2430
          list_app (do_const name2) (first_bounds @ [last_bound])
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2431
          |> filter_ty_args
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2432
        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
  2433
        val eq =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2434
          eq_formula type_enc (atomic_types_of T)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2435
                     (map (apsnd do_bound_type) bounds) false
46437
9552b6f2c670 fixed arity error
blanchet
parents: 46435
diff changeset
  2436
                     (ho_term_of tm1) (ho_term_of tm2)
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2437
      in
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2438
        ([tm1, tm2],
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2439
         [Formula (uncurried_alias_eq_prefix ^ s2, kind, eq |> maybe_negate,
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2440
                   NONE, isabelle_info format spec_eqN helper_rank)])
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2441
        |> (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
  2442
            else pair_append (do_alias (ary - 1)))
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2443
      end
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2444
  in do_alias end
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2445
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
  2446
        type_enc sym_tab0 sym_tab
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2447
        (s, {min_ary, types, in_conj, ...} : sym_info) =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2448
  case unprefix_and_unascii const_prefix s of
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2449
    SOME mangled_s =>
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2450
    if String.isSubstring uncurried_alias_sep mangled_s then
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2451
      let
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2452
        val base_s0 = mangled_s |> unmangled_const_name |> hd |> invert_const
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2453
      in
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2454
        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
  2455
            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
  2456
      end
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2457
    else
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2458
      ([], [])
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2459
  | NONE => ([], [])
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2460
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
  2461
        mono type_enc uncurried_aliases sym_tab0 sym_tab =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2462
  ([], [])
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2463
  |> uncurried_aliases
46402
ef8d65f64f77 change 9ce354a77908 wasn't quite right -- here's an improvement
blanchet
parents: 46400
diff changeset
  2464
     ? Symtab.fold_rev
ef8d65f64f77 change 9ce354a77908 wasn't quite right -- here's an improvement
blanchet
parents: 46400
diff changeset
  2465
           (pair_append
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2466
            o uncurried_alias_lines_for_sym ctxt monom_constrs format
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2467
                  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
  2468
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2469
fun needs_type_tag_idempotence ctxt (Tags (poly, level)) =
44496
c1884789ff80 added config options to control two aspects of the translation, for evaluation purposes
blanchet
parents: 44495
diff changeset
  2470
    Config.get ctxt type_tag_idempotence andalso
44768
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2471
    is_type_level_monotonicity_based level andalso
a7bc1bdb8bb4 rationalize uniform encodings
blanchet
parents: 44754
diff changeset
  2472
    poly <> Mangled_Monomorphic
44496
c1884789ff80 added config options to control two aspects of the translation, for evaluation purposes
blanchet
parents: 44495
diff changeset
  2473
  | needs_type_tag_idempotence _ _ = false
42831
c9b0968484fb more work on "shallow" encoding + adjustments to other encodings
blanchet
parents: 42830
diff changeset
  2474
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2475
val implicit_declsN = "Should-be-implicit typings"
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
  2476
val explicit_declsN = "Explicit typings"
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2477
val uncurried_alias_eqsN = "Uncurried aliases"
41157
blanchet
parents: 41150
diff changeset
  2478
val factsN = "Relevant facts"
blanchet
parents: 41150
diff changeset
  2479
val class_relsN = "Class relationships"
42543
f9d402d144d4 declare TFF types so that SNARK can be used with types
blanchet
parents: 42542
diff changeset
  2480
val aritiesN = "Arities"
41157
blanchet
parents: 41150
diff changeset
  2481
val helpersN = "Helper facts"
blanchet
parents: 41150
diff changeset
  2482
val conjsN = "Conjectures"
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2483
val free_typesN = "Type variables"
41157
blanchet
parents: 41150
diff changeset
  2484
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2485
(* 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
  2486
   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 "$i
blanchet
parents: 45780
diff changeset
  2487
   SNARK) require explicit declarations. The situation is similar for THF. *)
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2488
45875
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2489
fun default_type type_enc pred_sym s =
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2490
  let
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2491
    val ind =
45875
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2492
      case type_enc of
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2493
        Simple_Types _ =>
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2494
        if String.isPrefix type_const_prefix s then atype_of_types
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2495
        else individual_atype
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2496
      | _ => individual_atype
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2497
    fun typ 0 = if pred_sym then bool_atype else ind
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2498
      | typ ary = AFun (ind, typ (ary - 1))
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2499
  in typ end
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2500
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2501
fun nary_type_constr_type n =
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2502
  funpow n (curry AFun atype_of_types) atype_of_types
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2503
45875
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2504
fun undeclared_syms_in_problem type_enc problem =
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2505
  let
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2506
    val declared = declared_syms_in_problem problem
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2507
    fun do_sym (name as (s, _)) ty =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2508
      if is_tptp_user_symbol s andalso not (member (op =) declared name) then
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2509
        AList.default (op =) (name, ty)
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2510
      else
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2511
        I
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2512
    fun do_type (AType (name, tys)) =
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2513
        do_sym name (fn () => nary_type_constr_type (length tys))
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2514
        #> fold do_type tys
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2515
      | do_type (AFun (ty1, ty2)) = do_type ty1 #> do_type ty2
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2516
      | do_type (ATyAbs (_, ty)) = do_type ty
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2517
    fun do_term pred_sym (ATerm (name as (s, _), tms)) =
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2518
        do_sym name (fn _ => default_type type_enc pred_sym s (length tms))
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2519
        #> fold (do_term false) tms
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2520
      | do_term _ (AAbs ((_, ty), tm)) = do_type ty #> do_term false tm
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2521
    fun do_formula (AQuant (_, xs, phi)) =
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2522
        fold do_type (map_filter snd xs) #> do_formula phi
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2523
      | do_formula (AConn (_, phis)) = fold do_formula phis
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2524
      | do_formula (AAtom tm) = do_term true tm
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2525
    fun do_problem_line (Decl (_, _, ty)) = do_type ty
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2526
      | do_problem_line (Formula (_, _, phi, _, _)) = do_formula phi
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2527
  in
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2528
    fold (fold do_problem_line o snd) problem []
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2529
    |> filter_out (is_built_in_tptp_symbol o fst o fst)
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2530
  end
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2531
45875
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2532
fun declare_undeclared_syms_in_atp_problem type_enc problem =
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2533
  let
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2534
    val decls =
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2535
      problem
45875
6d3533fd26ea make sure that all symbols are declared in untyped SPASS DFG output (broken since 3b8606fba2dd)
blanchet
parents: 45831
diff changeset
  2536
      |> undeclared_syms_in_problem type_enc
45828
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2537
      |> sort_wrt (fst o fst)
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2538
      |> map (fn (x as (s, _), ty) => Decl (type_decl_prefix ^ s, x, ty ()))
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2539
  in (implicit_declsN, decls) :: problem end
3b8606fba2dd correctly declare implicit TFF1 types that appear first as type arguments with "$tType" and not "$i
blanchet
parents: 45780
diff changeset
  2540
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2541
fun exists_subdtype P =
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2542
  let
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2543
    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
  2544
      (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
  2545
  in ex end
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2546
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2547
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
  2548
  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
  2549
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2550
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
  2551
  Symtab.fold (snd
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2552
               #> #descr
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2553
               #> maps (snd #> #3)
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2554
               #> (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
  2555
              (Datatype.get_all thy) []
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2556
  |> List.partition is_poly_constr
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2557
  |> pairself (map fst)
45945
aa8100cc02dc no need for type arguments for monomorphic constructors of polymorphic datatypes (e.g. "Nil")
blanchet
parents: 45939
diff changeset
  2558
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2559
val app_op_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
  2560
44397
06375952f1fa cleaner handling of polymorphic monotonicity inference
blanchet
parents: 44396
diff changeset
  2561
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
  2562
                        lam_trans uncurried_aliases readable_names preproc
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2563
                        hyp_ts concl_t facts =
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2564
  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
  2565
    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
  2566
    val type_enc = type_enc |> adjust_type_enc format
46389
blanchet
parents: 46385
diff changeset
  2567
    (* Forcing explicit applications is expensive for polymorphic encodings,
blanchet
parents: 46385
diff changeset
  2568
       because it takes only one existential variable ranging over "'a => 'b" to
blanchet
parents: 46385
diff changeset
  2569
       ruin everything. Hence we do it only if there are few facts (which is
blanchet
parents: 46385
diff changeset
  2570
       normally the case for "metis" and the minimizer). *)
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2571
    val app_op_level =
46370
b3e53dd6f10a new SPASS setup
blanchet
parents: 46368
diff changeset
  2572
      if polymorphism_of_type_enc type_enc = Polymorphic andalso
46392
676a4b4b6e73 implemented partial application aliases (for SPASS mainly)
blanchet
parents: 46389
diff changeset
  2573
         length facts >= app_op_threshold then
46389
blanchet
parents: 46385
diff changeset
  2574
        Incomplete_Apply
46370
b3e53dd6f10a new SPASS setup
blanchet
parents: 46368
diff changeset
  2575
      else
46389
blanchet
parents: 46385
diff changeset
  2576
        Sufficient_Apply
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  2577
    val lam_trans =
45520
2b1dde0b1c30 thread in additional options to minimizer
blanchet
parents: 45519
diff changeset
  2578
      if lam_trans = keep_lamsN andalso
2b1dde0b1c30 thread in additional options to minimizer
blanchet
parents: 45519
diff changeset
  2579
         not (is_type_enc_higher_order type_enc) then
45519
cd6e78cb6ee8 make metis reconstruction handling more flexible
blanchet
parents: 45516
diff changeset
  2580
        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
  2581
               \encoding.")
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
  2582
      else
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  2583
        lam_trans
45508
b216dc1b3630 started implementing lambda-lifting in Metis
blanchet
parents: 45401
diff changeset
  2584
    val (fact_names, classes, conjs, facts, class_rel_clauses, arity_clauses,
b216dc1b3630 started implementing lambda-lifting in Metis
blanchet
parents: 45401
diff changeset
  2585
         lifted) =
45514
973bb7846505 parse lambda translation option in Metis
blanchet
parents: 45513
diff changeset
  2586
      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
  2587
                         concl_t facts
46402
ef8d65f64f77 change 9ce354a77908 wasn't quite right -- here's an improvement
blanchet
parents: 46400
diff changeset
  2588
    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
  2589
    val mono = conjs @ facts |> mononotonicity_info_for_facts ctxt type_enc
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2590
    val (polym_constrs, monom_constrs) =
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2591
      all_constrs_of_polymorphic_datatypes thy
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2592
      |>> map (make_fixed_const (SOME format))
46400
9ce354a77908 don't introduce new symbols in helpers -- makes problems unprovable
blanchet
parents: 46399
diff changeset
  2593
    fun firstorderize in_helper =
46402
ef8d65f64f77 change 9ce354a77908 wasn't quite right -- here's an improvement
blanchet
parents: 46400
diff changeset
  2594
      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
  2595
                         (uncurried_aliases andalso not in_helper)
46400
9ce354a77908 don't introduce new symbols in helpers -- makes problems unprovable
blanchet
parents: 46399
diff changeset
  2596
    val (conjs, facts) = (conjs, facts) |> pairself (map (firstorderize false))
46389
blanchet
parents: 46385
diff changeset
  2597
    val sym_tab = sym_table_for_facts ctxt type_enc Incomplete_Apply 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
  2598
    val helpers =
44773
e701dabbfe37 perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents: 44772
diff changeset
  2599
      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
  2600
              |> map (firstorderize true)
44501
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2601
    val mono_Ts =
45937
blanchet
parents: 45920
diff changeset
  2602
      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
  2603
    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
  2604
    val (uncurried_alias_eq_tms, uncurried_alias_eq_lines) =
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2605
      uncurried_alias_lines_for_sym_table ctxt monom_constrs format
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2606
          conj_sym_kind mono type_enc uncurried_aliases sym_tab0 sym_tab
42680
b6c27cf04fe9 exploit inferred monotonicity
blanchet
parents: 42677
diff changeset
  2607
    val sym_decl_lines =
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2608
      (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
  2609
      |> sym_decl_table_for_facts ctxt format type_enc sym_tab
44399
cd1e32b8d4c4 added caching for (in)finiteness checks
blanchet
parents: 44398
diff changeset
  2610
      |> problem_lines_for_sym_decl_table ctxt format conj_sym_kind mono
44501
5bde887b4785 make polymorphic encodings more complete
blanchet
parents: 44500
diff changeset
  2611
                                               type_enc mono_Ts
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2612
    val num_facts = length facts
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2613
    val fact_lines =
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2614
      map (formula_line_for_fact ctxt polym_constrs format fact_prefix
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2615
               ascii_of (not exporter) (not exporter) mono type_enc
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2616
               (rank_of_fact_num num_facts))
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2617
          (0 upto num_facts - 1 ~~ facts)
42881
dbdfe2d5b6ab automatically use "metisFT" when typed helpers are necessary
blanchet
parents: 42879
diff changeset
  2618
    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
  2619
      0 upto length helpers - 1 ~~ helpers
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2620
      |> 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
  2621
                                    false true mono type_enc (K default_rank))
44496
c1884789ff80 added config options to control two aspects of the translation, for evaluation purposes
blanchet
parents: 44495
diff changeset
  2622
      |> (if needs_type_tag_idempotence ctxt type_enc then
45301
866b075aa99b added sorted DFG output for coming version of SPASS
blanchet
parents: 45299
diff changeset
  2623
            cons (type_tag_idempotence_fact format type_enc)
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
  2624
          else
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
  2625
            I)
42522
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
  2626
    (* Reordering these might confuse the proof reconstruction code or the SPASS
43039
b967219cec78 tuned comments
blanchet
parents: 43017
diff changeset
  2627
       FLOTTER hack. *)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2628
    val problem =
44595
444d111bde7d generate properly typed TFF1 (PFF) problems in the presence of type class predicates
blanchet
parents: 44594
diff changeset
  2629
      [(explicit_declsN, class_decl_lines @ sym_decl_lines),
46409
d4754183ccce made option available to users (mostly for experiments)
blanchet
parents: 46406
diff changeset
  2630
       (uncurried_alias_eqsN, uncurried_alias_eq_lines),
46406
0e490b9e8422 extended SPASS/DFG output with ranks
blanchet
parents: 46402
diff changeset
  2631
       (factsN, fact_lines),
44593
ccf40af26ae9 implement more of the polymorphic simply typed format TFF(1)
blanchet
parents: 44591
diff changeset
  2632
       (class_relsN,
45301
866b075aa99b added sorted DFG output for coming version of SPASS
blanchet
parents: 45299
diff changeset
  2633
        map (formula_line_for_class_rel_clause format type_enc)
866b075aa99b added sorted DFG output for coming version of SPASS
blanchet
parents: 45299
diff changeset
  2634
            class_rel_clauses),
866b075aa99b added sorted DFG output for coming version of SPASS
blanchet
parents: 45299
diff changeset
  2635
       (aritiesN,
866b075aa99b added sorted DFG output for coming version of SPASS
blanchet
parents: 45299
diff changeset
  2636
        map (formula_line_for_arity_clause format type_enc) arity_clauses),
42881
dbdfe2d5b6ab automatically use "metisFT" when typed helpers are necessary
blanchet
parents: 42879
diff changeset
  2637
       (helpersN, helper_lines),
42962
3b50fdeb6cfc started adding support for THF output (but no lambdas)
blanchet
parents: 42956
diff changeset
  2638
       (conjsN,
45947
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2639
        map (formula_line_for_conjecture ctxt polym_constrs format mono
7eccf8147f57 treat polymorphic constructors specially in @? encodings
blanchet
parents: 45946
diff changeset
  2640
                                         type_enc) conjs),
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  2641
       (free_typesN, formula_lines_for_free_types type_enc (facts @ conjs))]
42543
f9d402d144d4 declare TFF types so that SNARK can be used with types
blanchet
parents: 42542
diff changeset
  2642
    val problem =
42561
23ddc4e3d19c have properly type-instantiated helper facts (combinators and If)
blanchet
parents: 42560
diff changeset
  2643
      problem
43092
93ec303e1917 more work on new metis that exploits the powerful new type encodings
blanchet
parents: 43086
diff changeset
  2644
      |> (case format of
93ec303e1917 more work on new metis that exploits the powerful new type encodings
blanchet
parents: 43086
diff changeset
  2645
            CNF => ensure_cnf_problem
93ec303e1917 more work on new metis that exploits the powerful new type encodings
blanchet
parents: 43086
diff changeset
  2646
          | CNF_UEQ => filter_cnf_ueq_problem
44589
0a1dfc6365e9 first step towards polymorphic TFF + changed defaults for Vampire
blanchet
parents: 44587
diff changeset
  2647
          | FOF => I
44754
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
  2648
          | TFF (_, TPTP_Implicit) => I
265174356212 added dummy polymorphic THF system
blanchet
parents: 44742
diff changeset
  2649
          | 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
  2650
          | _ => 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
  2651
    val (problem, pool) = problem |> nice_atp_problem readable_names format
44772
blanchet
parents: 44771
diff changeset
  2652
    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
  2653
      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
  2654
  in
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2655
    (problem,
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2656
     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
  2657
     fact_names |> Vector.fromList,
45508
b216dc1b3630 started implementing lambda-lifting in Metis
blanchet
parents: 45401
diff changeset
  2658
     lifted,
44772
blanchet
parents: 44771
diff changeset
  2659
     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
  2660
  end
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2661
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2662
(* FUDGE *)
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2663
val conj_weight = 0.0
41770
a710e96583d5 adjust fudge factors
blanchet
parents: 41769
diff changeset
  2664
val hyp_weight = 0.1
a710e96583d5 adjust fudge factors
blanchet
parents: 41769
diff changeset
  2665
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
  2666
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
  2667
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
  2668
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2669
(* Weights are from 0.0 (most important) to 1.0 (least important). *)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2670
fun atp_problem_relevance_weights problem =
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2671
  let
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2672
    fun add_term_weights weight (ATerm (s, tms)) =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2673
        is_tptp_user_symbol s ? Symtab.default (s, weight)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2674
        #> fold (add_term_weights weight) tms
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2675
      | 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
  2676
    fun add_line_weights weight (Formula (_, _, phi, _, _)) =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2677
        formula_fold NONE (K (add_term_weights weight)) phi
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2678
      | add_line_weights _ _ = I
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2679
    fun add_conjectures_weights [] = I
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2680
      | add_conjectures_weights conjs =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2681
        let val (hyps, conj) = split_last conjs in
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2682
          add_line_weights conj_weight conj
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2683
          #> fold (add_line_weights hyp_weight) hyps
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2684
        end
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2685
    fun add_facts_weights facts =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2686
      let
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2687
        val num_facts = length facts
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2688
        fun weight_of j =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2689
          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
  2690
                            / Real.fromInt num_facts
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2691
      in
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2692
        map weight_of (0 upto num_facts - 1) ~~ facts
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2693
        |> fold (uncurry add_line_weights)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2694
      end
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2695
    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
  2696
  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
  2697
    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
  2698
    |> 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
  2699
    |> add_facts_weights (get factsN)
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2700
    |> 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
  2701
            [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
  2702
    |> 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
  2703
    |> 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
  2704
  end
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  2705
46442
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2706
val use_topo_for_kbo = false (* experimental *)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2707
val default_kbo_weight = 1
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2708
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2709
fun atp_problem_kbo_weights problem =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2710
  let
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2711
    fun add_term_deps head (ATerm (s, args)) =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2712
        is_tptp_user_symbol s ? perhaps (try (Graph.add_edge_acyclic (s, head)))
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2713
        #> fold (add_term_deps head) args
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2714
      | add_term_deps head (AAbs (_, tm)) = add_term_deps head tm
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2715
    fun add_eq_deps (ATerm (s, [ATerm (head, args as _ :: _), rhs])) =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2716
        is_tptp_equal s ? fold (add_term_deps head) (rhs :: args)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2717
      | add_eq_deps _ = I
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2718
    fun add_line_deps _ (Decl (_, s, ty)) =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2719
        is_function_type ty ? Graph.default_node (s, ())
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2720
      | add_line_deps status (Formula (_, _, phi, _, info)) =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2721
        if extract_isabelle_status info = SOME status then
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2722
          formula_fold NONE (K add_eq_deps) phi
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2723
        else
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2724
          I
1e07620d724c added possibility of generating KBO weights to DFG problems
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parents: 46437
diff changeset
  2725
    val graph =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2726
      Graph.empty |> fold (fold (add_line_deps spec_eqN) o snd) problem
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2727
                  |> fold (fold (add_line_deps simpN) o snd) problem
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2728
    fun next_weight w = w + w
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2729
    fun add_weights _ [] = I
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2730
      | add_weights weight syms =
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2731
        fold (AList.update (op =) o rpair weight) syms
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2732
        #> add_weights (next_weight weight)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2733
               (fold (union (op =) o Graph.immediate_succs graph) syms [])
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2734
  in
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2735
    if use_topo_for_kbo then
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2736
      let val topo = graph |> Graph.topological_order in
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2737
        topo ~~ (1 upto length topo)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2738
      end
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2739
    else
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2740
      [] |> add_weights 1 (Graph.minimals graph)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2741
         |> sort (int_ord o pairself snd)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2742
  end
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2743
  |> filter_out (fn (_, weight) => weight = default_kbo_weight)
1e07620d724c added possibility of generating KBO weights to DFG problems
blanchet
parents: 46437
diff changeset
  2744
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  2745
end;