author  blanchet 
Tue, 13 Dec 2011 14:55:42 +0100  
changeset 45829  0b19934792d2 
parent 45828  3b8606fba2dd 
child 45830  45a5b6edd4f7 
permissions  rwrr 
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(* Title: HOL/Tools/ATP/atp_translate.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_TRANSLATE = 
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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 locality = 
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General  Helper  Induction  Intro  Elim  Simp  Local  Assum  Chained 
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datatype polymorphism = Polymorphic  Raw_Monomorphic  Mangled_Monomorphic 
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datatype soundness = Sound_Modulo_Infinity  Sound 
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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 soundness * 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 lam_liftingN : string 
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val combinatorsN : string 
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val hybrid_lamsN : 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 simple_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 : soundness > 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 
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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 > term list > term 
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> ((string * locality) * term) list 
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> string problem * string Symtab.table * (string * locality) list vector 
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* (string * term) list * int Symtab.table 

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val atp_problem_weights : string problem > (string * real) list 
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end; 
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structure ATP_Translate : ATP_TRANSLATE = 
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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 lam_liftingN = "lam_lifting" 
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val combinatorsN = "combinators" 
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val hybrid_lamsN = "hybrid_lams" 
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val keep_lamsN = "keep_lams" 
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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 simple_type_prefix = "s_" 
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val class_prefix = "cl_" 
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(* Freshness almost guaranteed! *) 
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val atp_weak_prefix = "ATP:" 

148 

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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" ^ Long_Name.separator ^ "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 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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unASCII'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})))), 
254 
("c_All", (@{const_name All}, (@{thm fAll_def}, 

255 
("fAll", @{const_name ATP.fAll})))), 

256 
("c_Ex", (@{const_name Ex}, (@{thm fEx_def}, 

257 
("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"), 
274 
(@{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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284 

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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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291 

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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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294 

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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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299 

43622  300 
fun ascii_of_indexname (v, 0) = ascii_of v 
301 
 ascii_of_indexname (v, i) = ascii_of v ^ "_" ^ string_of_int i 

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302 

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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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43622  309 
fun make_schematic_type_var (x, i) = 
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tvar_prefix ^ (ascii_of_indexname (unprefix "'" x, i)) 
43622  311 
fun make_fixed_type_var x = tfree_prefix ^ (ascii_of (unprefix "'" x)) 
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312 

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(* "HOL.eq" and choice are mapped to the ATP's equivalents *) 
44587  314 
local 
315 
val choice_const = (fst o dest_Const o HOLogic.choice_const) Term.dummyT 

316 
fun default c = const_prefix ^ lookup_const c 

317 
in 

318 
fun make_fixed_const _ @{const_name HOL.eq} = tptp_old_equal 

44754  319 
 make_fixed_const (SOME (THF (_, _, THF_With_Choice))) c = 
320 
if c = choice_const then tptp_choice else default c 

44587  321 
 make_fixed_const _ c = default c 
322 
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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43093  328 
fun new_skolem_var_name_from_const s = 
329 
let val ss = s > space_explode Long_Name.separator in 

330 
nth ss (length ss  2) 

331 
end 

332 

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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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339 

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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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higherorder 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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347 

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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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356 

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(** Definitions and functions for FOL clauses and formulas for TPTP **) 
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358 

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359 
(** Isabelle arities **) 
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360 

44625  361 
type arity_atom = name * name * name list 
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362 

43263  363 
val type_class = the_single @{sort type} 
364 

43086  365 
type arity_clause = 
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{name : string, 
44625  367 
prem_atoms : arity_atom list, 
368 
concl_atom : arity_atom} 

369 

370 
fun add_prem_atom tvar = 

371 
fold (fn s => s <> type_class ? cons (`make_type_class s, `I tvar, [])) 

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372 

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373 
(* 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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375 
let 
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376 
val tvars = map (prefix tvar_prefix o string_of_int) (1 upto length args) 
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377 
val tvars_srts = ListPair.zip (tvars, args) 
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378 
in 
43086  379 
{name = name, 
44625  380 
prem_atoms = [] > fold (uncurry add_prem_atom) tvars_srts, 
381 
concl_atom = (`make_type_class cls, `make_fixed_type_const tcons, 

382 
tvars ~~ tvars)} 

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383 
end 
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384 

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385 
fun arity_clause _ _ (_, []) = [] 
43495  386 
 arity_clause seen n (tcons, ("HOL.type", _) :: ars) = (* ignore *) 
387 
arity_clause seen n (tcons, ars) 

388 
 arity_clause seen n (tcons, (ar as (class, _)) :: ars) = 

389 
if member (op =) seen class then 

390 
(* multiple arities for the same (tycon, class) pair *) 

391 
make_axiom_arity_clause (tcons, 

392 
lookup_const tcons ^ "___" ^ ascii_of class ^ "_" ^ string_of_int n, 

393 
ar) :: 

394 
arity_clause seen (n + 1) (tcons, ars) 

395 
else 

396 
make_axiom_arity_clause (tcons, lookup_const tcons ^ "___" ^ 

397 
ascii_of class, ar) :: 

398 
arity_clause (class :: seen) n (tcons, ars) 

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399 

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400 
fun multi_arity_clause [] = [] 
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401 
 multi_arity_clause ((tcons, ars) :: tc_arlists) = 
44772  402 
arity_clause [] 1 (tcons, ars) @ multi_arity_clause tc_arlists 
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403 

43622  404 
(* Generate all pairs (tycon, class, sorts) such that tycon belongs to class in 
405 
theory thy provided its arguments have the corresponding sorts. *) 

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406 
fun type_class_pairs thy tycons classes = 
43093  407 
let 
408 
val alg = Sign.classes_of thy 

409 
fun domain_sorts tycon = Sorts.mg_domain alg tycon o single 

410 
fun add_class tycon class = 

411 
cons (class, domain_sorts tycon class) 

412 
handle Sorts.CLASS_ERROR _ => I 

413 
fun try_classes tycon = (tycon, fold (add_class tycon) classes []) 

414 
in map try_classes tycons end 

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415 

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416 
(*Proving one (tycon, class) membership may require proving others, so iterate.*) 
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417 
fun iter_type_class_pairs _ _ [] = ([], []) 
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418 
 iter_type_class_pairs thy tycons classes = 
43263  419 
let 
420 
fun maybe_insert_class s = 

421 
(s <> type_class andalso not (member (op =) classes s)) 

422 
? insert (op =) s 

423 
val cpairs = type_class_pairs thy tycons classes 

424 
val newclasses = 

425 
[] > fold (fold (fold (fold maybe_insert_class) o snd) o snd) cpairs 

426 
val (classes', cpairs') = iter_type_class_pairs thy tycons newclasses 

43266  427 
in (classes' @ classes, union (op =) cpairs' cpairs) end 
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428 

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429 
fun make_arity_clauses thy tycons = 
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430 
iter_type_class_pairs thy tycons ##> multi_arity_clause 
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431 

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432 

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433 
(** Isabelle class relations **) 
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434 

43086  435 
type class_rel_clause = 
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436 
{name : string, 
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437 
subclass : name, 
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438 
superclass : name} 
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439 

43622  440 
(* Generate all pairs (sub, super) such that sub is a proper subclass of super 
441 
in theory "thy". *) 

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442 
fun class_pairs _ [] _ = [] 
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443 
 class_pairs thy subs supers = 
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444 
let 
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445 
val class_less = Sorts.class_less (Sign.classes_of thy) 
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446 
fun add_super sub super = class_less (sub, super) ? cons (sub, super) 
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447 
fun add_supers sub = fold (add_super sub) supers 
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448 
in fold add_supers subs [] end 
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449 

43622  450 
fun make_class_rel_clause (sub, super) = 
451 
{name = sub ^ "_" ^ super, subclass = `make_type_class sub, 

43086  452 
superclass = `make_type_class super} 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

453 

0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

454 
fun make_class_rel_clauses thy subs supers = 
43093  455 
map make_class_rel_clause (class_pairs thy subs supers) 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
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parents:
43064
diff
changeset

456 

43859  457 
(* intermediate terms *) 
458 
datatype iterm = 

459 
IConst of name * typ * typ list  

460 
IVar of name * typ  

461 
IApp of iterm * iterm  

462 
IAbs of (name * typ) * iterm 

43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

463 

43859  464 
fun ityp_of (IConst (_, T, _)) = T 
465 
 ityp_of (IVar (_, T)) = T 

466 
 ityp_of (IApp (t1, _)) = snd (dest_funT (ityp_of t1)) 

467 
 ityp_of (IAbs ((_, T), tm)) = T > ityp_of tm 

43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

468 

0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

469 
(*gets the head of a combinator application, along with the list of arguments*) 
43859  470 
fun strip_iterm_comb u = 
43496
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

471 
let 
43859  472 
fun stripc (IApp (t, u), ts) = stripc (t, u :: ts) 
43496
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

473 
 stripc x = x 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

474 
in stripc (u, []) end 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

475 

45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

476 
fun atomic_types_of T = fold_atyps (insert (op =)) T [] 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
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parents:
43064
diff
changeset

477 

45509  478 
val tvar_a_str = "'a" 
479 
val tvar_a = TVar ((tvar_a_str, 0), HOLogic.typeS) 

480 
val tvar_a_name = (make_schematic_type_var (tvar_a_str, 0), tvar_a_str) 

481 
val itself_name = `make_fixed_type_const @{type_name itself} 

482 
val TYPE_name = `(make_fixed_const NONE) @{const_name TYPE} 

483 
val tvar_a_atype = AType (tvar_a_name, []) 

484 
val a_itself_atype = AType (itself_name, [tvar_a_atype]) 

485 

43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
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parents:
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diff
changeset

486 
fun new_skolem_const_name s num_T_args = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
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parents:
43064
diff
changeset

487 
[new_skolem_const_prefix, s, string_of_int num_T_args] 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
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parents:
43064
diff
changeset

488 
> space_implode Long_Name.separator 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

489 

44594
ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents:
44593
diff
changeset

490 
fun robust_const_type thy s = 
45509  491 
if s = app_op_name then 
492 
Logic.varifyT_global @{typ "('a => 'b) => 'a => 'b"} 

45554
09ad83de849c
don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents:
45551
diff
changeset

493 
else if String.isPrefix lam_lifted_prefix s then 
45509  494 
Logic.varifyT_global @{typ "'a => 'b"} 
495 
else 

496 
(* Old Skolems throw a "TYPE" exception here, which will be caught. *) 

497 
s > Sign.the_const_type thy 

44594
ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
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parents:
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diff
changeset

498 

ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents:
44593
diff
changeset

499 
(* 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

500 
fun robust_const_typargs thy (s, T) = 
45509  501 
if s = app_op_name then 
502 
let val (T1, T2) = T > domain_type > dest_funT in [T1, T2] end 

503 
else if String.isPrefix old_skolem_const_prefix s then 

504 
[] > 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

505 
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

506 
if String.isPrefix lam_lifted_poly_prefix s then 
45511
9b0f8ca4388e
continued implementation of lambdalifting in Metis
blanchet
parents:
45509
diff
changeset

507 
let val (T1, T2) = T > dest_funT in [T1, T2] end 
9b0f8ca4388e
continued implementation of lambdalifting in Metis
blanchet
parents:
45509
diff
changeset

508 
else 
9b0f8ca4388e
continued implementation of lambdalifting in Metis
blanchet
parents:
45509
diff
changeset

509 
[] 
45509  510 
else 
511 
(s, T) > Sign.const_typargs thy 

44594
ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents:
44593
diff
changeset

512 

43859  513 
(* Converts an Isabelle/HOL term (with combinators) into an intermediate term. 
514 
Also accumulates sort infomation. *) 

44495  515 
fun iterm_from_term thy format bs (P $ Q) = 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
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parents:
43064
diff
changeset

516 
let 
44495  517 
val (P', P_atomics_Ts) = iterm_from_term thy format bs P 
518 
val (Q', Q_atomics_Ts) = iterm_from_term thy format bs Q 

43859  519 
in (IApp (P', Q'), union (op =) P_atomics_Ts Q_atomics_Ts) end 
44495  520 
 iterm_from_term thy format _ (Const (c, T)) = 
521 
(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

522 
robust_const_typargs thy (c, T)), 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

523 
atomic_types_of T) 
44495  524 
 iterm_from_term _ _ _ (Free (s, T)) = 
45509  525 
(IConst (`make_fixed_var s, T, []), atomic_types_of T) 
44495  526 
 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

527 
(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

528 
let 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

529 
val Ts = T > strip_type > swap > op :: 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

530 
val s' = new_skolem_const_name s (length Ts) 
44495  531 
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

532 
else 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

533 
IVar ((make_schematic_var v, s), T), atomic_types_of T) 
44495  534 
 iterm_from_term _ _ bs (Bound j) = 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

535 
nth bs j > (fn (_, (name, T)) => (IConst (name, T, []), atomic_types_of T)) 
44495  536 
 iterm_from_term thy format bs (Abs (s, T, t)) = 
43678  537 
let 
538 
fun vary s = s > AList.defined (op =) bs s ? vary o Symbol.bump_string 

539 
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

540 
val name = `make_bound_var s 
44495  541 
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

542 
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

543 

43421  544 
datatype locality = 
44783  545 
General  Helper  Induction  Intro  Elim  Simp  Local  Assum  Chained 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

546 

43624
de026aecab9b
cleaner handling of higherorder simple types, so that it's also possible to use firstorder simple types with LEOII and company
blanchet
parents:
43623
diff
changeset

547 
datatype order = First_Order  Higher_Order 
44494
a77901b3774e
rationalized option names  mono becomes raw_mono and mangled becomes mono
blanchet
parents:
44493
diff
changeset

548 
datatype polymorphism = Polymorphic  Raw_Monomorphic  Mangled_Monomorphic 
45299
ee584ff987c3
check "sound" flag before doing something unsound...
blanchet
parents:
45202
diff
changeset

549 
datatype soundness = Sound_Modulo_Infinity  Sound 
44811  550 
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 outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

551 
datatype type_level = 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

552 
All_Types  
44811  553 
Noninf_Nonmono_Types of soundness * granularity  
554 
Fin_Nonmono_Types of granularity  

44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

555 
Const_Arg_Types  
43362  556 
No_Types 
42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

557 

43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

558 
datatype type_enc = 
44591
0b107d11f634
extended simple types with polymorphism  the implementation still needs some work though
blanchet
parents:
44589
diff
changeset

559 
Simple_Types of order * polymorphism * type_level  
44768  560 
Guards of polymorphism * type_level  
561 
Tags of polymorphism * type_level 

562 

563 
fun is_type_enc_higher_order (Simple_Types (Higher_Order, _, _)) = true 

564 
 is_type_enc_higher_order _ = false 

565 

566 
fun polymorphism_of_type_enc (Simple_Types (_, poly, _)) = poly 

567 
 polymorphism_of_type_enc (Guards (poly, _)) = poly 

568 
 polymorphism_of_type_enc (Tags (poly, _)) = poly 

569 

570 
fun level_of_type_enc (Simple_Types (_, _, level)) = level 

571 
 level_of_type_enc (Guards (_, level)) = level 

572 
 level_of_type_enc (Tags (_, level)) = level 

573 

44811  574 
fun granularity_of_type_level (Noninf_Nonmono_Types (_, grain)) = grain 
575 
 granularity_of_type_level (Fin_Nonmono_Types grain) = grain 

576 
 granularity_of_type_level _ = All_Vars 

44768  577 

578 
fun is_type_level_quasi_sound All_Types = true 

579 
 is_type_level_quasi_sound (Noninf_Nonmono_Types _) = true 

580 
 is_type_level_quasi_sound _ = false 

581 
val is_type_enc_quasi_sound = is_type_level_quasi_sound o level_of_type_enc 

582 

583 
fun is_type_level_fairly_sound (Fin_Nonmono_Types _) = true 

584 
 is_type_level_fairly_sound level = is_type_level_quasi_sound level 

585 
val is_type_enc_fairly_sound = is_type_level_fairly_sound o level_of_type_enc 

586 

587 
fun is_type_level_monotonicity_based (Noninf_Nonmono_Types _) = true 

588 
 is_type_level_monotonicity_based (Fin_Nonmono_Types _) = true 

589 
 is_type_level_monotonicity_based _ = false 

42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

590 

44785  591 
(* "_query", "_bang", and "_at" are for the ASCIIchallenged Metis and 
592 
Mirabelle. *) 

593 
val queries = ["?", "_query"] 

594 
val bangs = ["!", "_bang"] 

595 
val ats = ["@", "_at"] 

596 

42689
e38590764c34
versions of ! and ? for the ASCIIchallenged Mirabelle
blanchet
parents:
42688
diff
changeset

597 
fun try_unsuffixes ss s = 
e38590764c34
versions of ! and ? for the ASCIIchallenged Mirabelle
blanchet
parents:
42688
diff
changeset

598 
fold (fn s' => fn NONE => try (unsuffix s') s  some => some) ss NONE 
e38590764c34
versions of ! and ? for the ASCIIchallenged Mirabelle
blanchet
parents:
42688
diff
changeset

599 

44785  600 
fun try_nonmono constr suffixes fallback s = 
601 
case try_unsuffixes suffixes s of 

602 
SOME s => 

603 
(case try_unsuffixes suffixes s of 

44811  604 
SOME s => (constr Positively_Naked_Vars, s) 
44785  605 
 NONE => 
606 
case try_unsuffixes ats s of 

44811  607 
SOME s => (constr Ghost_Type_Arg_Vars, s) 
608 
 NONE => (constr All_Vars, s)) 

44785  609 
 NONE => fallback s 
44768  610 

44811  611 
fun is_incompatible_type_level poly level = 
612 
poly = Mangled_Monomorphic andalso 

613 
granularity_of_type_level level = Ghost_Type_Arg_Vars 

44810  614 

44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

615 
fun type_enc_from_string soundness s = 
42722  616 
(case try (unprefix "poly_") s of 
617 
SOME s => (SOME Polymorphic, s) 

42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

618 
 NONE => 
44494
a77901b3774e
rationalized option names  mono becomes raw_mono and mangled becomes mono
blanchet
parents:
44493
diff
changeset

619 
case try (unprefix "raw_mono_") s of 
a77901b3774e
rationalized option names  mono becomes raw_mono and mangled becomes mono
blanchet
parents:
44493
diff
changeset

620 
SOME s => (SOME Raw_Monomorphic, s) 
42722  621 
 NONE => 
44494
a77901b3774e
rationalized option names  mono becomes raw_mono and mangled becomes mono
blanchet
parents:
44493
diff
changeset

622 
case try (unprefix "mono_") s of 
42722  623 
SOME s => (SOME Mangled_Monomorphic, s) 
624 
 NONE => (NONE, s)) 

44785  625 
> (pair All_Types 
626 
> try_nonmono Fin_Nonmono_Types bangs 

627 
> try_nonmono (curry Noninf_Nonmono_Types soundness) queries) 

44768  628 
> (fn (poly, (level, core)) => 
629 
case (core, (poly, level)) of 

630 
("simple", (SOME poly, _)) => 

44742  631 
(case (poly, level) of 
632 
(Polymorphic, All_Types) => 

633 
Simple_Types (First_Order, Polymorphic, All_Types) 

634 
 (Mangled_Monomorphic, _) => 

44811  635 
if granularity_of_type_level level = All_Vars then 
44768  636 
Simple_Types (First_Order, Mangled_Monomorphic, level) 
637 
else 

638 
raise Same.SAME 

44742  639 
 _ => raise Same.SAME) 
44768  640 
 ("simple_higher", (SOME poly, _)) => 
44591
0b107d11f634
extended simple types with polymorphism  the implementation still needs some work though
blanchet
parents:
44589
diff
changeset

641 
(case (poly, level) of 
44754  642 
(Polymorphic, All_Types) => 
643 
Simple_Types (Higher_Order, Polymorphic, All_Types) 

644 
 (_, Noninf_Nonmono_Types _) => raise Same.SAME 

44742  645 
 (Mangled_Monomorphic, _) => 
44811  646 
if granularity_of_type_level level = All_Vars then 
44768  647 
Simple_Types (Higher_Order, Mangled_Monomorphic, level) 
648 
else 

649 
raise Same.SAME 

44742  650 
 _ => raise Same.SAME) 
44810  651 
 ("guards", (SOME poly, _)) => 
44811  652 
if is_incompatible_type_level poly level then raise Same.SAME 
44810  653 
else Guards (poly, level) 
654 
 ("tags", (SOME poly, _)) => 

44811  655 
if is_incompatible_type_level poly level then raise Same.SAME 
44810  656 
else Tags (poly, level) 
44768  657 
 ("args", (SOME poly, All_Types (* naja *))) => 
658 
Guards (poly, Const_Arg_Types) 

659 
 ("erased", (NONE, All_Types (* naja *))) => 

660 
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

661 
 _ => raise Same.SAME) 
44785  662 
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 outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

663 

44754  664 
fun adjust_type_enc (THF (TPTP_Monomorphic, _, _)) 
665 
(Simple_Types (order, _, level)) = 

44591
0b107d11f634
extended simple types with polymorphism  the implementation still needs some work though
blanchet
parents:
44589
diff
changeset

666 
Simple_Types (order, Mangled_Monomorphic, level) 
44754  667 
 adjust_type_enc (THF _) type_enc = type_enc 
668 
 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

669 
Simple_Types (First_Order, Mangled_Monomorphic, level) 
45303
bd03b08161ac
added DFG unsorted support (like in the old days)
blanchet
parents:
45301
diff
changeset

670 
 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

671 
Simple_Types (First_Order, Mangled_Monomorphic, level) 
44754  672 
 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

673 
Simple_Types (First_Order, poly, level) 
0b107d11f634
extended simple types with polymorphism  the implementation still needs some work though
blanchet
parents:
44589
diff
changeset

674 
 adjust_type_enc format (Simple_Types (_, poly, level)) = 
44768  675 
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

676 
 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

677 
(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

678 
 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

679 

45509  680 
fun constify_lifted (t $ u) = constify_lifted t $ constify_lifted u 
681 
 constify_lifted (Abs (s, T, t)) = Abs (s, T, constify_lifted t) 

682 
 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

683 
(if String.isPrefix lam_lifted_prefix s then Const else Free) x 
45509  684 
 constify_lifted t = t 
685 

45565
9c335d69a362
fixed bugs in lambdalifting code  ensure distinct names for variables
blanchet
parents:
45564
diff
changeset

686 
(* Requires bound variables not to clash with any schematic variables (as should 
9c335d69a362
fixed bugs in lambdalifting code  ensure distinct names for variables
blanchet
parents:
45564
diff
changeset

687 
be the case right after lambdalifting). *) 
45570
6d95a66cce00
pull variables (Var) out of lambdas, so that the Isabelle theorems closely mirror the Metis lambdalifted ones
blanchet
parents:
45568
diff
changeset

688 
fun open_form (Const (@{const_name All}, _) $ Abs (s, T, t)) = 
6d95a66cce00
pull variables (Var) out of lambdas, so that the Isabelle theorems closely mirror the Metis lambdalifted ones
blanchet
parents:
45568
diff
changeset

689 
let 
6d95a66cce00
pull variables (Var) out of lambdas, so that the Isabelle theorems closely mirror the Metis lambdalifted ones
blanchet
parents:
45568
diff
changeset

690 
val names = Name.make_context (map fst (Term.add_var_names t [])) 
6d95a66cce00
pull variables (Var) out of lambdas, so that the Isabelle theorems closely mirror the Metis lambdalifted ones
blanchet
parents:
45568
diff
changeset

691 
val (s, _) = Name.variant s names 
6d95a66cce00
pull variables (Var) out of lambdas, so that the Isabelle theorems closely mirror the Metis lambdalifted ones
blanchet
parents:
45568
diff
changeset

692 
in open_form (subst_bound (Var ((s, 0), T), t)) end 
45511
9b0f8ca4388e
continued implementation of lambdalifting in Metis
blanchet
parents:
45509
diff
changeset

693 
 open_form t = t 
9b0f8ca4388e
continued implementation of lambdalifting in Metis
blanchet
parents:
45509
diff
changeset

694 

45554
09ad83de849c
don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents:
45551
diff
changeset

695 
fun lift_lams_part_1 ctxt type_enc = 
45568
211a6e6cbc04
move etacontraction to before translation to Metis, to ensure everything stays in sync
blanchet
parents:
45565
diff
changeset

696 
map close_form #> rpair ctxt 
44088
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

697 
#> Lambda_Lifting.lift_lambdas 
45564  698 
(SOME ((if polymorphism_of_type_enc type_enc = Polymorphic then 
699 
lam_lifted_poly_prefix 

700 
else 

701 
lam_lifted_mono_prefix) ^ "_a")) 

44088
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

702 
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

703 
#> fst 
09ad83de849c
don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents:
45551
diff
changeset

704 
val lift_lams_part_2 = pairself (map (open_form o constify_lifted)) 
09ad83de849c
don't pass "lam_lifted" option to "metis" unless there's a good reason
blanchet
parents:
45551
diff
changeset

705 
val lift_lams = lift_lams_part_2 ooo lift_lams_part_1 
44088
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

706 

3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

707 
fun intentionalize_def (Const (@{const_name All}, _) $ Abs (_, _, t)) = 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

708 
intentionalize_def t 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

709 
 intentionalize_def (Const (@{const_name HOL.eq}, _) $ t $ u) = 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

710 
let 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

711 
fun lam T t = Abs (Name.uu, T, t) 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

712 
val (head, args) = strip_comb t > rev 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

713 
val head_T = fastype_of head 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

714 
val n = length args 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

715 
val arg_Ts = head_T > binder_types > take n > rev 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

716 
val u = u > subst_atomic (args ~~ map Bound (0 upto n  1)) 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

717 
in HOLogic.eq_const head_T $ head $ fold lam arg_Ts u end 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

718 
 intentionalize_def t = t 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

719 

40114  720 
type translated_formula = 
43496
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

721 
{name : string, 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

722 
locality : locality, 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

723 
kind : formula_kind, 
43859  724 
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

725 
atomic_types : typ list} 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

726 

43859  727 
fun update_iformula f ({name, locality, kind, iformula, atomic_types} 
728 
: translated_formula) = 

729 
{name = name, locality = locality, kind = kind, iformula = f iformula, 

42562  730 
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

731 

43859  732 
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

733 

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

734 
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

735 
let val T = get_T x in 
44399  736 
if exists (type_instance ctxt T o get_T) xs then xs 
737 
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

738 
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

739 

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

740 
(* 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

741 
datatype type_arg_policy = 
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

742 
Explicit_Type_Args of bool  
44771  743 
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

744 
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

745 

43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

746 
fun type_arg_policy type_enc s = 
45315  747 
let val poly = polymorphism_of_type_enc type_enc in 
44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

748 
if s = type_tag_name then 
45315  749 
if poly = Mangled_Monomorphic then Mangled_Type_Args 
750 
else Explicit_Type_Args false 

44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

751 
else case type_enc of 
45315  752 
Simple_Types (_, Polymorphic, _) => Explicit_Type_Args false 
753 
 Tags (_, All_Types) => No_Type_Args 

44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

754 
 _ => 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

755 
let val level = level_of_type_enc type_enc in 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

756 
if level = No_Types orelse s = @{const_name HOL.eq} orelse 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

757 
(s = app_op_name andalso level = Const_Arg_Types) then 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

758 
No_Type_Args 
45315  759 
else if poly = Mangled_Monomorphic then 
44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

760 
Mangled_Type_Args 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

761 
else 
44811  762 
Explicit_Type_Args 
763 
(level = All_Types orelse 

764 
granularity_of_type_level level = Ghost_Type_Arg_Vars) 

44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

765 
end 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

766 
end 
42227
662b50b7126f
if "monomorphize" is enabled, mangle the type information in the names by default
blanchet
parents:
42180
diff
changeset

767 

44625  768 
(* Make atoms for sorted type variables. *) 
43263  769 
fun generic_add_sorts_on_type (_, []) = I 
770 
 generic_add_sorts_on_type ((x, i), s :: ss) = 

771 
generic_add_sorts_on_type ((x, i), ss) 

772 
#> (if s = the_single @{sort HOL.type} then 

43093  773 
I 
774 
else if i = ~1 then 

44623  775 
insert (op =) (`make_type_class s, `make_fixed_type_var x) 
43093  776 
else 
44623  777 
insert (op =) (`make_type_class s, 
778 
(make_schematic_type_var (x, i), x))) 

43263  779 
fun add_sorts_on_tfree (TFree (s, S)) = generic_add_sorts_on_type ((s, ~1), S) 
780 
 add_sorts_on_tfree _ = I 

781 
fun add_sorts_on_tvar (TVar z) = generic_add_sorts_on_type z 

782 
 add_sorts_on_tvar _ = I 

43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

783 

44625  784 
fun type_class_formula type_enc class arg = 
785 
AAtom (ATerm (class, arg :: 

786 
(case type_enc of 

44754  787 
Simple_Types (First_Order, Polymorphic, _) => 
45301
866b075aa99b
added sorted DFG output for coming version of SPASS
blanchet
parents:
45299
diff
changeset

788 
if avoid_first_order_ghost_type_vars then [ATerm (TYPE_name, [arg])] 
44754  789 
else [] 
44625  790 
 _ => []))) 
791 
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

792 
[] > level_of_type_enc type_enc <> No_Types ? fold add_sorts_on_typ Ts 
44625  793 
> map (fn (class, name) => 
794 
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

795 

42534
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

796 
fun mk_aconns c phis = 
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

797 
let val (phis', phi') = split_last phis in 
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

798 
fold_rev (mk_aconn c) phis' phi' 
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

799 
end 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

800 
fun mk_ahorn [] phi = phi 
42534
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

801 
 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

802 
fun mk_aquant _ [] phi = phi 
413b56894f82
close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents:
42521
diff
changeset

803 
 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

804 
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

805 
 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

806 

45315  807 
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

808 
let 
45315  809 
fun add_formula_vars bounds (AQuant (_, xs, phi)) = 
810 
add_formula_vars (map fst xs @ bounds) phi 

811 
 add_formula_vars bounds (AConn (_, phis)) = 

812 
fold (add_formula_vars bounds) phis 

813 
 add_formula_vars bounds (AAtom tm) = add_term_vars bounds tm 

814 
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

815 

45377  816 
fun add_term_vars bounds (ATerm (name as (s, _), tms)) = 
817 
(if is_tptp_variable s andalso 

818 
not (String.isPrefix tvar_prefix s) andalso 

819 
not (member (op =) bounds name) then 

820 
insert (op =) (name, NONE) 

821 
else 

822 
I) 

823 
#> fold (add_term_vars bounds) tms 

824 
 add_term_vars bounds (AAbs ((name, _), tm)) = 

825 
add_term_vars (name :: bounds) tm 

45401  826 
fun close_formula_universally phi = close_universally add_term_vars phi 
45315  827 

828 
fun add_iterm_vars bounds (IApp (tm1, tm2)) = 

829 
fold (add_iterm_vars bounds) [tm1, tm2] 

830 
 add_iterm_vars _ (IConst _) = I 

831 
 add_iterm_vars bounds (IVar (name, T)) = 

832 
not (member (op =) bounds name) ? insert (op =) (name, SOME T) 

833 
 add_iterm_vars bounds (IAbs (_, tm)) = add_iterm_vars bounds tm 

834 
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

835 

44594
ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents:
44593
diff
changeset

836 
val fused_infinite_type_name = @{type_name ind} (* any infinite type *) 
ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents:
44593
diff
changeset

837 
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

838 

ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents:
44593
diff
changeset

839 
fun tvar_name (x as (s, _)) = (make_schematic_type_var x, s) 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

840 

43676
3b0b448b4d69
add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes firstorder)
nik
parents:
43628
diff
changeset

841 
fun ho_term_from_typ format type_enc = 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

842 
let 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

843 
fun term (Type (s, Ts)) = 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

844 
ATerm (case (is_type_enc_higher_order type_enc, s) of 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

845 
(true, @{type_name bool}) => `I tptp_bool_type 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

846 
 (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

847 
 _ => if s = fused_infinite_type_name andalso 
44235
85e9dad3c187
distinguish THF syntax with and without choice (Satallax vs. LEOII)
blanchet
parents:
44121
diff
changeset

848 
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

849 
`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

850 
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

851 
`make_fixed_type_const s, 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

852 
map term Ts) 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

853 
 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

854 
 term (TVar (x, _)) = ATerm (tvar_name x, []) 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

855 
in term end 
42562  856 

43676
3b0b448b4d69
add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes firstorder)
nik
parents:
43628
diff
changeset

857 
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 firstorder)
nik
parents:
43628
diff
changeset

858 
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

859 

42562  860 
(* This shouldn't clash with anything else. *) 
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

861 
val mangled_type_sep = "\000" 
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

862 

42562  863 
fun generic_mangled_type_name f (ATerm (name, [])) = f name 
864 
 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

865 
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

866 
^ ")" 
43692  867 
 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

868 

44396
66b9b3fcd608
started cleaning up polymorphic monotonicitybased encodings, based on discussions with Nick Smallbone
blanchet
parents:
44394
diff
changeset

869 
fun mangled_type format type_enc = 
66b9b3fcd608
started cleaning up polymorphic monotonicitybased encodings, based on discussions with Nick Smallbone
blanchet
parents:
44394
diff
changeset

870 
generic_mangled_type_name fst o ho_term_from_typ format type_enc 
66b9b3fcd608
started cleaning up polymorphic monotonicitybased encodings, based on discussions with Nick Smallbone
blanchet
parents:
44394
diff
changeset

871 

43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

872 
fun make_simple_type s = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

873 
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

874 
s = tptp_individual_type then 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

875 
s 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

876 
else 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

877 
simple_type_prefix ^ ascii_of s 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

878 

43676
3b0b448b4d69
add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes firstorder)
nik
parents:
43628
diff
changeset

879 
fun ho_type_from_ho_term type_enc pred_sym ary = 
42963  880 
let 
44593
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

881 
fun to_mangled_atype ty = 
42963  882 
AType ((make_simple_type (generic_mangled_type_name fst ty), 
44593
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

883 
generic_mangled_type_name snd ty), []) 
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

884 
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

885 
 to_poly_atype _ = raise Fail "unexpected type abstraction" 
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

886 
val to_atype = 
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

887 
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

888 
else to_mangled_atype 
42963  889 
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

890 
fun to_fo 0 ty = if pred_sym then bool_atype else to_atype ty 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

891 
 to_fo ary (ATerm (_, tys)) = to_afun to_atype (to_fo (ary  1)) tys 
43692  892 
 to_fo _ _ = raise Fail "unexpected type abstraction" 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

893 
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 firstorder)
nik
parents:
43628
diff
changeset

894 
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 firstorder)
nik
parents:
43628
diff
changeset

895 
 to_ho _ = raise Fail "unexpected type abstraction" 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

896 
in if is_type_enc_higher_order type_enc then to_ho else to_fo ary end 
42963  897 

43677  898 
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 firstorder)
nik
parents:
43628
diff
changeset

899 
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 firstorder)
nik
parents:
43628
diff
changeset

900 
o ho_term_from_typ format type_enc 
42963  901 

43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

902 
fun mangled_const_name format type_enc T_args (s, s') = 
42963  903 
let 
43676
3b0b448b4d69
add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes firstorder)
nik
parents:
43628
diff
changeset

904 
val ty_args = T_args > map_filter (ho_term_for_type_arg format type_enc) 
42963  905 
fun type_suffix f g = 
906 
fold_rev (curry (op ^) o g o prefix mangled_type_sep 

907 
o generic_mangled_type_name f) ty_args "" 

908 
in (s ^ type_suffix fst ascii_of, s' ^ type_suffix snd I) end 

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

909 

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

910 
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

911 
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

912 

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

913 
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

914 
(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

915 
 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

916 
[] >> 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

917 
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

918 
(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

919 

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

920 
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

921 
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

922 
> 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

923 
(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

924 
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

925 
> 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

926 

42561
23ddc4e3d19c
have properly typeinstantiated helper facts (combinators and If)
blanchet
parents:
42560
diff
changeset

927 
val unmangled_const_name = space_explode mangled_type_sep #> hd 
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

928 
fun unmangled_const 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

929 
let val ss = space_explode mangled_type_sep s in 
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

930 
(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

931 
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

932 

44773
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

933 
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

934 
let 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

935 
fun tweak_ho_quant ho_quant T [IAbs _] = IConst (`I ho_quant, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

936 
 tweak_ho_quant ho_quant (T as Type (_, [p_T as Type (_, [x_T, _]), _])) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

937 
_ = 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

938 
(* Etaexpand "!!" and "??", to work around LEOII 1.2.8 parser 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

939 
limitation. This works in conjuction with special code in 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

940 
"ATP_Problem" that uses the syntactic sugar "!" and "?" whenever 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

941 
possible. *) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

942 
IAbs ((`I "P", p_T), 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

943 
IApp (IConst (`I ho_quant, T, []), 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

944 
IAbs ((`I "X", x_T), 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

945 
IApp (IConst (`I "P", p_T, []), 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

946 
IConst (`I "X", x_T, []))))) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

947 
 tweak_ho_quant _ _ _ = raise Fail "unexpected type for quantifier" 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

948 
fun intro top_level args (IApp (tm1, tm2)) = 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

949 
IApp (intro top_level (tm2 :: args) tm1, intro false [] tm2) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

950 
 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

951 
(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

952 
SOME proxy_base => 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

953 
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

954 
case (top_level, s) of 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

955 
(_, "c_False") => IConst (`I tptp_false, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

956 
 (_, "c_True") => IConst (`I tptp_true, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

957 
 (false, "c_Not") => IConst (`I tptp_not, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

958 
 (false, "c_conj") => IConst (`I tptp_and, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

959 
 (false, "c_disj") => IConst (`I tptp_or, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

960 
 (false, "c_implies") => IConst (`I tptp_implies, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

961 
 (false, "c_All") => tweak_ho_quant tptp_ho_forall T args 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

962 
 (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

963 
 (false, s) => 
44097  964 
if is_tptp_equal s andalso length args = 2 then 
965 
IConst (`I tptp_equal, T, []) 

966 
else 

44589
0a1dfc6365e9
first step towards polymorphic TFF + changed defaults for Vampire
blanchet
parents:
44587
diff
changeset

967 
(* Use a proxy even for partially applied THF0 equality, 
0a1dfc6365e9
first step towards polymorphic TFF + changed defaults for Vampire
blanchet
parents:
44587
diff
changeset

968 
because the LEOII and Satallax parsers complain about not 
0a1dfc6365e9
first step towards polymorphic TFF + changed defaults for Vampire
blanchet
parents:
44587
diff
changeset

969 
being able to infer the type of "=". *) 
44097  970 
IConst (proxy_base >> prefix const_prefix, T, T_args) 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

971 
 _ => IConst (name, T, []) 
42569
5737947e4c77
make sure that fequal keeps its type arguments for mangled type systems
blanchet
parents:
42568
diff
changeset

972 
else 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

973 
IConst (proxy_base >> prefix const_prefix, T, T_args) 
45167
6bc8d260d459
gracefully handle quantifiers of the form "All $ t" where "t" is not a lambdaabstraction in higherorder translations
blanchet
parents:
44859
diff
changeset

974 
 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 lambdaabstraction in higherorder translations
blanchet
parents:
44859
diff
changeset

975 
else IConst (name, T, T_args)) 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

976 
 intro _ _ (IAbs (bound, tm)) = IAbs (bound, intro false [] tm) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

977 
 intro _ _ tm = tm 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

978 
in intro true [] end 
42568
7b9801a34836
no needless "fequal" proxies if "explicit_apply" is set + always have readable names
blanchet
parents:
42566
diff
changeset

979 

44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

980 
fun mangle_type_args_in_iterm format type_enc = 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

981 
if polymorphism_of_type_enc type_enc = Mangled_Monomorphic then 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

982 
let 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

983 
fun mangle (IApp (tm1, tm2)) = IApp (mangle tm1, mangle tm2) 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

984 
 mangle (tm as IConst (_, _, [])) = tm 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

985 
 mangle (tm as IConst (name as (s, _), T, T_args)) = 
45511
9b0f8ca4388e
continued implementation of lambdalifting in Metis
blanchet
parents:
45509
diff
changeset

986 
(case unprefix_and_unascii const_prefix s of 
44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

987 
NONE => tm 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

988 
 SOME s'' => 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

989 
case type_arg_policy type_enc (invert_const s'') of 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

990 
Mangled_Type_Args => 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

991 
IConst (mangled_const_name format type_enc T_args name, T, []) 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

992 
 _ => tm) 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

993 
 mangle (IAbs (bound, tm)) = IAbs (bound, mangle tm) 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

994 
 mangle tm = tm 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

995 
in mangle end 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

996 
else 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

997 
I 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

998 

44773
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

999 
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

1000 
 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

1001 
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

1002 
 chop_fun _ T = ([], T) 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1003 

44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1004 
fun filter_const_type_args _ _ _ [] = [] 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1005 
 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

1006 
let 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1007 
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

1008 
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

1009 
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

1010 
in 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1011 
U_args ~~ T_args 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1012 
> map (fn (U, T) => 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1013 
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

1014 
end 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1015 
handle TYPE _ => T_args 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1016 

44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1017 
fun filter_type_args_in_iterm thy type_enc = 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1018 
let 
44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1019 
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 firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1020 
 filt _ (tm as IConst (_, _, [])) = tm 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1021 
 filt ary (IConst (name as (s, _), T, T_args)) = 
45511
9b0f8ca4388e
continued implementation of lambdalifting in Metis
blanchet
parents:
45509
diff
changeset

1022 
(case unprefix_and_unascii const_prefix s of 
44773
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1023 
NONE => 
44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1024 
(name, 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1025 
if level_of_type_enc type_enc = No_Types orelse s = tptp_choice then 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1026 
[] 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1027 
else 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1028 
T_args) 
44773
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1029 
 SOME s'' => 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1030 
let 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1031 
val s'' = invert_const s'' 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1032 
fun filter_T_args false = T_args 
44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1033 
 filter_T_args true = 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

1034 
in 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1035 
case type_arg_policy type_enc s'' of 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1036 
Explicit_Type_Args drop_args => (name, filter_T_args drop_args) 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1037 
 No_Type_Args => (name, []) 
44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1038 
 Mangled_Type_Args => raise Fail "unexpected (un)mangled symbol" 
44773
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1039 
end) 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1040 
> (fn (name, T_args) => IConst (name, T, T_args)) 
44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1041 
 filt _ (IAbs (bound, tm)) = IAbs (bound, filt 0 tm) 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1042 
 filt _ tm = tm 
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1043 
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

1044 

e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1045 
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

1046 
let 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1047 
val thy = Proof_Context.theory_of ctxt 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

1048 
fun do_term bs t atomic_Ts = 
44495  1049 
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

1050 
>> (introduce_proxies_in_iterm type_enc 
44774
72785558a6ff
separate mangling, which can (and should) be done before the formulas are firstorderized, and type arg filtering, which must be done after once the min arities have been computed
blanchet
parents:
44773
diff
changeset

1051 
#> mangle_type_args_in_iterm format type_enc 
44773
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1052 
#> AAtom) 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

1053 
> 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

1054 
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

1055 
let 
15160cdc4688
precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents:
44402
diff
changeset

1056 
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

1057 
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

1058 
val name = 
15160cdc4688
precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents:
44402
diff
changeset

1059 
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

1060 
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

1061 
 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

1062 
 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

1063 
in 
15160cdc4688
precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents:
44402
diff
changeset

1064 
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

1065 
#>> mk_aquant q [(name, SOME T)] 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

1066 
##> union (op =) (atomic_types_of T) 
38518
54727b44e277
handle bound name conflicts gracefully in FOF translation
blanchet
parents:
38496
diff
changeset

1067 
end 
44403
15160cdc4688
precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents:
44402
diff
changeset

1068 
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

1069 
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

1070 
and do_formula bs pos t = 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1071 
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

1072 
@{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

1073 
 @{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

1074 
 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

1075 
do_quant bs AForall pos s T t' 
45167
6bc8d260d459
gracefully handle quantifiers of the form "All $ t" where "t" is not a lambdaabstraction in higherorder translations
blanchet
parents:
44859
diff
changeset

1076 
 (t0 as Const (@{const_name All}, _)) $ t1 => 
6bc8d260d459
gracefully handle quantifiers of the form "All $ t" where "t" is not a lambdaabstraction in higherorder translations
blanchet
parents:
44859
diff
changeset

1077 
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

1078 
 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

1079 
do_quant bs AExists pos s T t' 
45167
6bc8d260d459
gracefully handle quantifiers of the form "All $ t" where "t" is not a lambdaabstraction in higherorder translations
blanchet
parents:
44859
diff
changeset

1080 
 (t0 as Const (@{const_name Ex}, _)) $ t1 => 
6bc8d260d459
gracefully handle quantifiers of the form "All $ t" where "t" is not a lambdaabstraction in higherorder translations
blanchet
parents:
44859
diff
changeset

1081 
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

1082 
 @{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

1083 
 @{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

1084 
 @{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

1085 
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

1086 
 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

1087 
if eq_as_iff then do_conn bs AIff NONE t1 NONE t2 else do_term bs t 
41140
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
blanchet
parents:
41138
diff
changeset

1088 
 _ => do_term bs t 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1089 
in do_formula [] end 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1090 

43264
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
blanchet
parents:
43263
diff
changeset

1091 
fun presimplify_term _ [] t = t 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
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parents:
43263
diff
changeset

1092 
 presimplify_term ctxt presimp_consts t = 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
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43263
diff
changeset

1093 
t > exists_Const (member (op =) presimp_consts o fst) t 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
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parents:
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diff
changeset

1094 
? (Skip_Proof.make_thm (Proof_Context.theory_of ctxt) 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
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parents:
43263
diff
changeset

1095 
#> Meson.presimplify ctxt 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
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parents:
43263
diff
changeset

1096 
#> prop_of) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1097 

43863
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
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parents:
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diff
changeset

1098 
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)
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parents:
diff
changeset

1099 
fun conceal_bounds Ts t = 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
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parents:
diff
changeset

1100 
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

1101 
(0 upto length Ts  1 ~~ Ts), t) 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1102 
fun reveal_bounds Ts = 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1103 
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

1104 
(0 upto length Ts  1 ~~ Ts)) 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1105 

43265  1106 
fun is_fun_equality (@{const_name HOL.eq}, 
1107 
Type (_, [Type (@{type_name fun}, _), _])) = true 

1108 
 is_fun_equality _ = false 

1109 

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

1110 
fun extensionalize_term ctxt t = 
43265  1111 
if exists_Const is_fun_equality t then 
1112 
let val thy = Proof_Context.theory_of ctxt in 

1113 
t > cterm_of thy > Meson.extensionalize_conv ctxt 

1114 
> prop_of > Logic.dest_equals > snd 

1115 
end 

1116 
else 

1117 
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

1118 

43862  1119 
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 lambdalifting (freshness of new names)
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diff
changeset

1120 
let val thy = Proof_Context.theory_of ctxt in 
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ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
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parents:
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diff
changeset

1121 
if Meson.is_fol_term thy t then 
a43d61270142
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parents:
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diff
changeset

1122 
t 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
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diff
changeset

1123 
else 
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ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
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diff
changeset

1124 
let 
44814
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
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diff
changeset

1125 
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 lambdalifting (freshness of new names)
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parents:
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diff
changeset

1126 
case t of 
44814
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1127 
@{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 lambdalifting (freshness of new names)
blanchet
parents:
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diff
changeset

1128 
 (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

1129 
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 lambdalifting (freshness of new names)
blanchet
parents:
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diff
changeset

1130 
 (t0 as Const (@{const_name All}, _)) $ t1 => 
44814
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
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diff
changeset

1131 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1132 
 (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

1133 
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 lambdalifting (freshness of new names)
blanchet
parents:
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diff
changeset

1134 
 (t0 as Const (@{const_name Ex}, _)) $ t1 => 
44814
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1135 
trans Ts (t0 $ eta_expand Ts t1 1) 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1136 
 (t0 as @{const HOL.conj}) $ t1 $ t2 => 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1137 
t0 $ trans Ts t1 $ trans Ts t2 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
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diff
changeset

1138 
 (t0 as @{const HOL.disj}) $ t1 $ t2 => 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1139 
t0 $ trans Ts t1 $ trans Ts t2 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
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diff
changeset

1140 
 (t0 as @{const HOL.implies}) $ t1 $ t2 => 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1141 
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 lambdalifting (freshness of new names)
blanchet
parents:
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diff
changeset

1142 
 (t0 as Const (@{const_name HOL.eq}, Type (_, [@{typ bool}, _]))) 
a43d61270142
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parents:
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diff
changeset

1143 
$ t1 $ t2 => 
44814
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1144 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1145 
 _ => 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1146 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1147 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1148 
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

1149 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1150 
end 
43856
d636b053d4ff
move more lambdahandling logic to Sledgehammer, from ATP module, for formal dependency reasons
blanchet
parents:
43830
diff
changeset

1151 

43997  1152 
fun do_cheaply_conceal_lambdas Ts (t1 $ t2) = 
1153 
do_cheaply_conceal_lambdas Ts t1 

1154 
$ do_cheaply_conceal_lambdas Ts t2 

1155 
 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

1156 
Const (lam_lifted_poly_prefix ^ serial_string (), 
45509  1157 
T > fastype_of1 (T :: Ts, t)) 
43997  1158 
 do_cheaply_conceal_lambdas _ t = t 
43856
d636b053d4ff
move more lambdahandling logic to Sledgehammer, from ATP module, for formal dependency reasons
blanchet
parents:
43830
diff
changeset

1159 

43862  1160 
fun do_introduce_combinators ctxt Ts t = 
42361  1161 
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

1162 
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

1163 
> 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

1164 
> 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

1165 
> 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

1166 
> reveal_bounds Ts 