author  blanchet 
Mon, 31 Oct 2011 17:51:01 +0100  
changeset 45316  08d84bdd5b37 
parent 45315  dfbbc5ac7194 
child 45364  d00339ae7fff 
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_lambdasN : string 
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val concealedN : string 
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val liftingN : string 
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val combinatorsN : string 
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val hybridN : string 
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val lambdasN : string 
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val smartN : 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 polymorphic_free_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 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 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 strip_prefix_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 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 * int * int 
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* (string * locality) list vector * int 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_lambdasN = "no_lambdas" 
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val concealedN = "concealed" 
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val liftingN = "lifting" 
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val combinatorsN = "combinators" 
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val hybridN = "hybrid" 
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val lambdasN = "lambdas" 
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val smartN = "smart" 
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(* TFF1 is still in development, and it is still unclear whether symbols will be 
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allowed to have types like "$tType > $o" (i.e., "![A : $tType] : $o"), with 

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ghost type variables. *) 
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val avoid_first_order_ghost_type_vars = true 
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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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val polymorphic_free_prefix = "poly_free" 
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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 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 lambda_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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(* Freshness almost guaranteed! *) 
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val atp_weak_prefix = "ATP:" 
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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 strip_prefix_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})))), 
247 
("c_All", (@{const_name All}, (@{thm fAll_def}, 

248 
("fAll", @{const_name ATP.fAll})))), 

249 
("c_Ex", (@{const_name Ex}, (@{thm fEx_def}, 

250 
("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"), 
267 
(@{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}, "COMBI"), 
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(@{const_name Meson.COMBK}, "COMBK"), 
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(@{const_name Meson.COMBB}, "COMBB"), 
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(@{const_name Meson.COMBC}, "COMBC"), 
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(@{const_name Meson.COMBS}, "COMBS")] 
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> Symtab.make 
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> fold (Symtab.update o swap o snd o snd o snd) proxy_table 
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(* Invert the table of translations between Isabelle and ATPs. *) 
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val const_trans_table_inv = 
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const_trans_table > Symtab.dest > map swap > Symtab.make 
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val const_trans_table_unprox = 
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Symtab.empty 
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> fold (fn (_, (isa, (_, (_, atp)))) => Symtab.update (atp, isa)) proxy_table 
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284 

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val invert_const = perhaps (Symtab.lookup const_trans_table_inv) 
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val unproxify_const = perhaps (Symtab.lookup const_trans_table_unprox) 
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fun lookup_const c = 
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case Symtab.lookup const_trans_table c of 
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SOME c' => c' 
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 NONE => ascii_of c 
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43622  293 
fun ascii_of_indexname (v, 0) = ascii_of v 
294 
 ascii_of_indexname (v, i) = ascii_of v ^ "_" ^ string_of_int i 

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fun make_bound_var x = bound_var_prefix ^ ascii_of x 
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fun make_all_bound_var x = all_bound_var_prefix ^ ascii_of x 
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fun make_exist_bound_var x = exist_bound_var_prefix ^ ascii_of x 
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fun make_schematic_var v = schematic_var_prefix ^ ascii_of_indexname v 
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fun make_fixed_var x = fixed_var_prefix ^ ascii_of x 
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43622  302 
fun make_schematic_type_var (x, i) = 
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tvar_prefix ^ (ascii_of_indexname (unprefix "'" x, i)) 
43622  304 
fun make_fixed_type_var x = tfree_prefix ^ (ascii_of (unprefix "'" x)) 
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305 

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(* "HOL.eq" and choice are mapped to the ATP's equivalents *) 
44587  307 
local 
308 
val choice_const = (fst o dest_Const o HOLogic.choice_const) Term.dummyT 

309 
fun default c = const_prefix ^ lookup_const c 

310 
in 

311 
fun make_fixed_const _ @{const_name HOL.eq} = tptp_old_equal 

44754  312 
 make_fixed_const (SOME (THF (_, _, THF_With_Choice))) c = 
313 
if c = choice_const then tptp_choice else default c 

44587  314 
 make_fixed_const _ c = default c 
315 
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  321 
fun new_skolem_var_name_from_const s = 
322 
let val ss = s > space_explode Long_Name.separator in 

323 
nth ss (length ss  2) 

324 
end 

325 

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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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332 

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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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340 

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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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349 

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(** Definitions and functions for FOL clauses and formulas for TPTP **) 
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351 

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352 
(** Isabelle arities **) 
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44625  354 
type arity_atom = name * name * name list 
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43263  356 
val type_class = the_single @{sort type} 
357 

43086  358 
type arity_clause = 
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{name : string, 
44625  360 
prem_atoms : arity_atom list, 
361 
concl_atom : arity_atom} 

362 

363 
fun add_prem_atom tvar = 

364 
fold (fn s => s <> type_class ? cons (`make_type_class s, `I tvar, [])) 

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(* Arity of type constructor "tcon :: (arg1, ..., argN) res" *) 
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fun make_axiom_arity_clause (tcons, name, (cls, args)) = 
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let 
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val tvars = map (prefix tvar_prefix o string_of_int) (1 upto length args) 
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val tvars_srts = ListPair.zip (tvars, args) 
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371 
in 
43086  372 
{name = name, 
44625  373 
prem_atoms = [] > fold (uncurry add_prem_atom) tvars_srts, 
374 
concl_atom = (`make_type_class cls, `make_fixed_type_const tcons, 

375 
tvars ~~ tvars)} 

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376 
end 
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377 

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fun arity_clause _ _ (_, []) = [] 
43495  379 
 arity_clause seen n (tcons, ("HOL.type", _) :: ars) = (* ignore *) 
380 
arity_clause seen n (tcons, ars) 

381 
 arity_clause seen n (tcons, (ar as (class, _)) :: ars) = 

382 
if member (op =) seen class then 

383 
(* multiple arities for the same (tycon, class) pair *) 

384 
make_axiom_arity_clause (tcons, 

385 
lookup_const tcons ^ "___" ^ ascii_of class ^ "_" ^ string_of_int n, 

386 
ar) :: 

387 
arity_clause seen (n + 1) (tcons, ars) 

388 
else 

389 
make_axiom_arity_clause (tcons, lookup_const tcons ^ "___" ^ 

390 
ascii_of class, ar) :: 

391 
arity_clause (class :: seen) n (tcons, ars) 

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392 

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393 
fun multi_arity_clause [] = [] 
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 multi_arity_clause ((tcons, ars) :: tc_arlists) = 
44772  395 
arity_clause [] 1 (tcons, ars) @ multi_arity_clause tc_arlists 
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396 

43622  397 
(* Generate all pairs (tycon, class, sorts) such that tycon belongs to class in 
398 
theory thy provided its arguments have the corresponding sorts. *) 

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399 
fun type_class_pairs thy tycons classes = 
43093  400 
let 
401 
val alg = Sign.classes_of thy 

402 
fun domain_sorts tycon = Sorts.mg_domain alg tycon o single 

403 
fun add_class tycon class = 

404 
cons (class, domain_sorts tycon class) 

405 
handle Sorts.CLASS_ERROR _ => I 

406 
fun try_classes tycon = (tycon, fold (add_class tycon) classes []) 

407 
in map try_classes tycons end 

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408 

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409 
(*Proving one (tycon, class) membership may require proving others, so iterate.*) 
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410 
fun iter_type_class_pairs _ _ [] = ([], []) 
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411 
 iter_type_class_pairs thy tycons classes = 
43263  412 
let 
413 
fun maybe_insert_class s = 

414 
(s <> type_class andalso not (member (op =) classes s)) 

415 
? insert (op =) s 

416 
val cpairs = type_class_pairs thy tycons classes 

417 
val newclasses = 

418 
[] > fold (fold (fold (fold maybe_insert_class) o snd) o snd) cpairs 

419 
val (classes', cpairs') = iter_type_class_pairs thy tycons newclasses 

43266  420 
in (classes' @ classes, union (op =) cpairs' cpairs) end 
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421 

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422 
fun make_arity_clauses thy tycons = 
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423 
iter_type_class_pairs thy tycons ##> multi_arity_clause 
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424 

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425 

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426 
(** Isabelle class relations **) 
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427 

43086  428 
type class_rel_clause = 
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429 
{name : string, 
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430 
subclass : name, 
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431 
superclass : name} 
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432 

43622  433 
(* Generate all pairs (sub, super) such that sub is a proper subclass of super 
434 
in theory "thy". *) 

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435 
fun class_pairs _ [] _ = [] 
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436 
 class_pairs thy subs supers = 
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437 
let 
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438 
val class_less = Sorts.class_less (Sign.classes_of thy) 
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439 
fun add_super sub super = class_less (sub, super) ? cons (sub, super) 
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440 
fun add_supers sub = fold (add_super sub) supers 
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441 
in fold add_supers subs [] end 
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442 

43622  443 
fun make_class_rel_clause (sub, super) = 
444 
{name = sub ^ "_" ^ super, subclass = `make_type_class sub, 

43086  445 
superclass = `make_type_class super} 
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446 

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447 
fun make_class_rel_clauses thy subs supers = 
43093  448 
map make_class_rel_clause (class_pairs thy subs supers) 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

449 

43859  450 
(* intermediate terms *) 
451 
datatype iterm = 

452 
IConst of name * typ * typ list  

453 
IVar of name * typ  

454 
IApp of iterm * iterm  

455 
IAbs of (name * typ) * iterm 

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

456 

43859  457 
fun ityp_of (IConst (_, T, _)) = T 
458 
 ityp_of (IVar (_, T)) = T 

459 
 ityp_of (IApp (t1, _)) = snd (dest_funT (ityp_of t1)) 

460 
 ityp_of (IAbs ((_, T), tm)) = T > ityp_of tm 

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

461 

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

462 
(*gets the head of a combinator application, along with the list of arguments*) 
43859  463 
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

464 
let 
43859  465 
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

466 
 stripc x = x 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

467 
in stripc (u, []) end 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

468 

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

469 
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

470 

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

471 
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

472 
[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

473 
> space_implode Long_Name.separator 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

474 

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

475 
fun robust_const_type thy s = 
ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents:
44593
diff
changeset

476 
if s = app_op_name then Logic.varifyT_global @{typ "('a => 'b) => 'a => 'b"} 
ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents:
44593
diff
changeset

477 
else s > Sign.the_const_type thy 
ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents:
44593
diff
changeset

478 

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

479 
(* 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

480 
fun robust_const_typargs thy (s, T) = 
ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents:
44593
diff
changeset

481 
(s, T) > Sign.const_typargs thy 
ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents:
44593
diff
changeset

482 
handle TYPE _ => [] > Term.add_tvarsT T > rev > map TVar 
ae82943481e9
added type abstractions (for declaring polymorphic constants) to TFF syntax
blanchet
parents:
44593
diff
changeset

483 

43859  484 
(* Converts an Isabelle/HOL term (with combinators) into an intermediate term. 
485 
Also accumulates sort infomation. *) 

44495  486 
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

487 
let 
44495  488 
val (P', P_atomics_Ts) = iterm_from_term thy format bs P 
489 
val (Q', Q_atomics_Ts) = iterm_from_term thy format bs Q 

43859  490 
in (IApp (P', Q'), union (op =) P_atomics_Ts Q_atomics_Ts) end 
44495  491 
 iterm_from_term thy format _ (Const (c, T)) = 
492 
(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

493 
robust_const_typargs thy (c, T)), 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

494 
atomic_types_of T) 
44495  495 
 iterm_from_term _ _ _ (Free (s, T)) = 
43907
073ab5379842
pass type arguments to lambdalifted Frees, to account for polymorphism
blanchet
parents:
43906
diff
changeset

496 
(IConst (`make_fixed_var s, T, 
43936
127749bbc639
use a more robust naming convention for "polymorphic" frees  the check is an overapproximation but that's fine as far as soundness is concerned
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parents:
43907
diff
changeset

497 
if String.isPrefix polymorphic_free_prefix s then [T] else []), 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

498 
atomic_types_of T) 
44495  499 
 iterm_from_term _ format _ (Var (v as (s, _), T)) = 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
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diff
changeset

500 
(if String.isPrefix Meson_Clausify.new_skolem_var_prefix s then 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
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parents:
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diff
changeset

501 
let 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

502 
val Ts = T > strip_type > swap > op :: 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

503 
val s' = new_skolem_const_name s (length Ts) 
44495  504 
in IConst (`(make_fixed_const (SOME format)) s', T, Ts) end 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
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parents:
43064
diff
changeset

505 
else 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

506 
IVar ((make_schematic_var v, s), T), atomic_types_of T) 
44495  507 
 iterm_from_term _ _ bs (Bound j) = 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

508 
nth bs j > (fn (_, (name, T)) => (IConst (name, T, []), atomic_types_of T)) 
44495  509 
 iterm_from_term thy format bs (Abs (s, T, t)) = 
43678  510 
let 
511 
fun vary s = s > AList.defined (op =) bs s ? vary o Symbol.bump_string 

512 
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

513 
val name = `make_bound_var s 
44495  514 
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

515 
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
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parents:
43064
diff
changeset

516 

43421  517 
datatype locality = 
44783  518 
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

519 

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

520 
datatype order = First_Order  Higher_Order 
44494
a77901b3774e
rationalized option names  mono becomes raw_mono and mangled becomes mono
blanchet
parents:
44493
diff
changeset

521 
datatype polymorphism = Polymorphic  Raw_Monomorphic  Mangled_Monomorphic 
45299
ee584ff987c3
check "sound" flag before doing something unsound...
blanchet
parents:
45202
diff
changeset

522 
datatype soundness = Sound_Modulo_Infinity  Sound 
44811  523 
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

524 
datatype type_level = 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

525 
All_Types  
44811  526 
Noninf_Nonmono_Types of soundness * granularity  
527 
Fin_Nonmono_Types of granularity  

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

528 
Const_Arg_Types  
43362  529 
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

530 

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

531 
datatype type_enc = 
44591
0b107d11f634
extended simple types with polymorphism  the implementation still needs some work though
blanchet
parents:
44589
diff
changeset

532 
Simple_Types of order * polymorphism * type_level  
44768  533 
Guards of polymorphism * type_level  
534 
Tags of polymorphism * type_level 

535 

536 
fun is_type_enc_higher_order (Simple_Types (Higher_Order, _, _)) = true 

537 
 is_type_enc_higher_order _ = false 

538 

539 
fun polymorphism_of_type_enc (Simple_Types (_, poly, _)) = poly 

540 
 polymorphism_of_type_enc (Guards (poly, _)) = poly 

541 
 polymorphism_of_type_enc (Tags (poly, _)) = poly 

542 

543 
fun level_of_type_enc (Simple_Types (_, _, level)) = level 

544 
 level_of_type_enc (Guards (_, level)) = level 

545 
 level_of_type_enc (Tags (_, level)) = level 

546 

44811  547 
fun granularity_of_type_level (Noninf_Nonmono_Types (_, grain)) = grain 
548 
 granularity_of_type_level (Fin_Nonmono_Types grain) = grain 

549 
 granularity_of_type_level _ = All_Vars 

44768  550 

551 
fun is_type_level_quasi_sound All_Types = true 

552 
 is_type_level_quasi_sound (Noninf_Nonmono_Types _) = true 

553 
 is_type_level_quasi_sound _ = false 

554 
val is_type_enc_quasi_sound = is_type_level_quasi_sound o level_of_type_enc 

555 

556 
fun is_type_level_fairly_sound (Fin_Nonmono_Types _) = true 

557 
 is_type_level_fairly_sound level = is_type_level_quasi_sound level 

558 
val is_type_enc_fairly_sound = is_type_level_fairly_sound o level_of_type_enc 

559 

560 
fun is_type_level_monotonicity_based (Noninf_Nonmono_Types _) = true 

561 
 is_type_level_monotonicity_based (Fin_Nonmono_Types _) = true 

562 
 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

563 

44785  564 
(* "_query", "_bang", and "_at" are for the ASCIIchallenged Metis and 
565 
Mirabelle. *) 

566 
val queries = ["?", "_query"] 

567 
val bangs = ["!", "_bang"] 

568 
val ats = ["@", "_at"] 

569 

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

570 
fun try_unsuffixes ss s = 
e38590764c34
versions of ! and ? for the ASCIIchallenged Mirabelle
blanchet
parents:
42688
diff
changeset

571 
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

572 

44785  573 
fun try_nonmono constr suffixes fallback s = 
574 
case try_unsuffixes suffixes s of 

575 
SOME s => 

576 
(case try_unsuffixes suffixes s of 

44811  577 
SOME s => (constr Positively_Naked_Vars, s) 
44785  578 
 NONE => 
579 
case try_unsuffixes ats s of 

44811  580 
SOME s => (constr Ghost_Type_Arg_Vars, s) 
581 
 NONE => (constr All_Vars, s)) 

44785  582 
 NONE => fallback s 
44768  583 

44811  584 
fun is_incompatible_type_level poly level = 
585 
poly = Mangled_Monomorphic andalso 

586 
granularity_of_type_level level = Ghost_Type_Arg_Vars 

44810  587 

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

588 
fun type_enc_from_string soundness s = 
42722  589 
(case try (unprefix "poly_") s of 
590 
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

591 
 NONE => 
44494
a77901b3774e
rationalized option names  mono becomes raw_mono and mangled becomes mono
blanchet
parents:
44493
diff
changeset

592 
case try (unprefix "raw_mono_") s of 
a77901b3774e
rationalized option names  mono becomes raw_mono and mangled becomes mono
blanchet
parents:
44493
diff
changeset

593 
SOME s => (SOME Raw_Monomorphic, s) 
42722  594 
 NONE => 
44494
a77901b3774e
rationalized option names  mono becomes raw_mono and mangled becomes mono
blanchet
parents:
44493
diff
changeset

595 
case try (unprefix "mono_") s of 
42722  596 
SOME s => (SOME Mangled_Monomorphic, s) 
597 
 NONE => (NONE, s)) 

44785  598 
> (pair All_Types 
599 
> try_nonmono Fin_Nonmono_Types bangs 

600 
> try_nonmono (curry Noninf_Nonmono_Types soundness) queries) 

44768  601 
> (fn (poly, (level, core)) => 
602 
case (core, (poly, level)) of 

603 
("simple", (SOME poly, _)) => 

44742  604 
(case (poly, level) of 
605 
(Polymorphic, All_Types) => 

606 
Simple_Types (First_Order, Polymorphic, All_Types) 

607 
 (Mangled_Monomorphic, _) => 

44811  608 
if granularity_of_type_level level = All_Vars then 
44768  609 
Simple_Types (First_Order, Mangled_Monomorphic, level) 
610 
else 

611 
raise Same.SAME 

44742  612 
 _ => raise Same.SAME) 
44768  613 
 ("simple_higher", (SOME poly, _)) => 
44591
0b107d11f634
extended simple types with polymorphism  the implementation still needs some work though
blanchet
parents:
44589
diff
changeset

614 
(case (poly, level) of 
44754  615 
(Polymorphic, All_Types) => 
616 
Simple_Types (Higher_Order, Polymorphic, All_Types) 

617 
 (_, Noninf_Nonmono_Types _) => raise Same.SAME 

44742  618 
 (Mangled_Monomorphic, _) => 
44811  619 
if granularity_of_type_level level = All_Vars then 
44768  620 
Simple_Types (Higher_Order, Mangled_Monomorphic, level) 
621 
else 

622 
raise Same.SAME 

44742  623 
 _ => raise Same.SAME) 
44810  624 
 ("guards", (SOME poly, _)) => 
44811  625 
if is_incompatible_type_level poly level then raise Same.SAME 
44810  626 
else Guards (poly, level) 
627 
 ("tags", (SOME poly, _)) => 

44811  628 
if is_incompatible_type_level poly level then raise Same.SAME 
44810  629 
else Tags (poly, level) 
44768  630 
 ("args", (SOME poly, All_Types (* naja *))) => 
631 
Guards (poly, Const_Arg_Types) 

632 
 ("erased", (NONE, All_Types (* naja *))) => 

633 
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

634 
 _ => raise Same.SAME) 
44785  635 
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

636 

44754  637 
fun adjust_type_enc (THF (TPTP_Monomorphic, _, _)) 
638 
(Simple_Types (order, _, level)) = 

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

639 
Simple_Types (order, Mangled_Monomorphic, level) 
44754  640 
 adjust_type_enc (THF _) type_enc = type_enc 
641 
 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

642 
Simple_Types (First_Order, Mangled_Monomorphic, level) 
45303
bd03b08161ac
added DFG unsorted support (like in the old days)
blanchet
parents:
45301
diff
changeset

643 
 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

644 
Simple_Types (First_Order, Mangled_Monomorphic, level) 
44754  645 
 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

646 
Simple_Types (First_Order, poly, level) 
0b107d11f634
extended simple types with polymorphism  the implementation still needs some work though
blanchet
parents:
44589
diff
changeset

647 
 adjust_type_enc format (Simple_Types (_, poly, level)) = 
44768  648 
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

649 
 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

650 
(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

651 
 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

652 

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

653 
fun lift_lambdas ctxt type_enc = 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

654 
map (close_form o Envir.eta_contract) #> rpair ctxt 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

655 
#> Lambda_Lifting.lift_lambdas 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

656 
(if polymorphism_of_type_enc type_enc = Polymorphic then 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

657 
SOME polymorphic_free_prefix 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

658 
else 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

659 
NONE) 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

660 
Lambda_Lifting.is_quantifier 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

661 
#> fst 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

662 

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

663 
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

664 
intentionalize_def t 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

665 
 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

666 
let 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

667 
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

668 
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

669 
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

670 
val n = length args 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

671 
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

672 
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

673 
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

674 
 intentionalize_def t = t 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

675 

40114  676 
type translated_formula = 
43496
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

677 
{name : string, 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

678 
locality : locality, 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

679 
kind : formula_kind, 
43859  680 
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

681 
atomic_types : typ list} 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

682 

43859  683 
fun update_iformula f ({name, locality, kind, iformula, atomic_types} 
684 
: translated_formula) = 

685 
{name = name, locality = locality, kind = kind, iformula = f iformula, 

42562  686 
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

687 

43859  688 
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

689 

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

690 
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

691 
let val T = get_T x in 
44399  692 
if exists (type_instance ctxt T o get_T) xs then xs 
693 
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

694 
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

695 

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

696 
(* 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

697 
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

698 
Explicit_Type_Args of bool  
44771  699 
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

700 
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

701 

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

702 
fun type_arg_policy type_enc s = 
45315  703 
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

704 
if s = type_tag_name then 
45315  705 
if poly = Mangled_Monomorphic then Mangled_Type_Args 
706 
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

707 
else case type_enc of 
45315  708 
Simple_Types (_, Polymorphic, _) => Explicit_Type_Args false 
709 
 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

710 
 _ => 
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

711 
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

712 
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

713 
(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

714 
No_Type_Args 
45315  715 
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

716 
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

717 
else 
44811  718 
Explicit_Type_Args 
719 
(level = All_Types orelse 

720 
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

721 
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

722 
end 
42227
662b50b7126f
if "monomorphize" is enabled, mangle the type information in the names by default
blanchet
parents:
42180
diff
changeset

723 

44625  724 
(* Make atoms for sorted type variables. *) 
43263  725 
fun generic_add_sorts_on_type (_, []) = I 
726 
 generic_add_sorts_on_type ((x, i), s :: ss) = 

727 
generic_add_sorts_on_type ((x, i), ss) 

728 
#> (if s = the_single @{sort HOL.type} then 

43093  729 
I 
730 
else if i = ~1 then 

44623  731 
insert (op =) (`make_type_class s, `make_fixed_type_var x) 
43093  732 
else 
44623  733 
insert (op =) (`make_type_class s, 
734 
(make_schematic_type_var (x, i), x))) 

43263  735 
fun add_sorts_on_tfree (TFree (s, S)) = generic_add_sorts_on_type ((s, ~1), S) 
736 
 add_sorts_on_tfree _ = I 

737 
fun add_sorts_on_tvar (TVar z) = generic_add_sorts_on_type z 

738 
 add_sorts_on_tvar _ = I 

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

739 

44625  740 
val tvar_a_str = "'a" 
741 
val tvar_a = TVar ((tvar_a_str, 0), HOLogic.typeS) 

742 
val tvar_a_name = (make_schematic_type_var (tvar_a_str, 0), tvar_a_str) 

743 
val itself_name = `make_fixed_type_const @{type_name itself} 

744 
val TYPE_name = `(make_fixed_const NONE) @{const_name TYPE} 

745 
val tvar_a_atype = AType (tvar_a_name, []) 

746 
val a_itself_atype = AType (itself_name, [tvar_a_atype]) 

747 

748 
fun type_class_formula type_enc class arg = 

749 
AAtom (ATerm (class, arg :: 

750 
(case type_enc of 

44754  751 
Simple_Types (First_Order, Polymorphic, _) => 
45301
866b075aa99b
added sorted DFG output for coming version of SPASS
blanchet
parents:
45299
diff
changeset

752 
if avoid_first_order_ghost_type_vars then [ATerm (TYPE_name, [arg])] 
44754  753 
else [] 
44625  754 
 _ => []))) 
755 
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

756 
[] > level_of_type_enc type_enc <> No_Types ? fold add_sorts_on_typ Ts 
44625  757 
> map (fn (class, name) => 
758 
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

759 

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

760 
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

761 
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

762 
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

763 
end 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

764 
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

765 
 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

766 
fun mk_aquant _ [] phi = phi 
413b56894f82
close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents:
42521
diff
changeset

767 
 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

768 
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

769 
 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

770 

45315  771 
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

772 
let 
45315  773 
fun add_formula_vars bounds (AQuant (_, xs, phi)) = 
774 
add_formula_vars (map fst xs @ bounds) phi 

775 
 add_formula_vars bounds (AConn (_, phis)) = 

776 
fold (add_formula_vars bounds) phis 

777 
 add_formula_vars bounds (AAtom tm) = add_term_vars bounds tm 

778 
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

779 

45315  780 
fun add_term_vars type_enc = 
44593
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

781 
let 
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

782 
fun vars bounds (ATerm (name as (s, _), tms)) = 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

783 
(if is_tptp_variable s andalso 
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

784 
not (String.isPrefix tvar_prefix s) andalso 
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

785 
not (member (op =) bounds name) then 
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

786 
insert (op =) (name, NONE) 
44593
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

787 
else 
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

788 
I) 
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

789 
#> fold (vars bounds) tms 
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

790 
 vars bounds (AAbs ((name, _), tm)) = vars (name :: bounds) tm 
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

791 
in vars end 
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

792 
fun close_formula_universally type_enc = 
45315  793 
close_universally (add_term_vars type_enc) 
794 

795 
fun add_iterm_vars bounds (IApp (tm1, tm2)) = 

796 
fold (add_iterm_vars bounds) [tm1, tm2] 

797 
 add_iterm_vars _ (IConst _) = I 

798 
 add_iterm_vars bounds (IVar (name, T)) = 

799 
not (member (op =) bounds name) ? insert (op =) (name, SOME T) 

800 
 add_iterm_vars bounds (IAbs (_, tm)) = add_iterm_vars bounds tm 

801 
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

802 

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

803 
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

804 
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

805 

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

806 
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

807 

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

808 
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

809 
let 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

810 
fun term (Type (s, Ts)) = 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

811 
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

812 
(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

813 
 (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

814 
 _ => if s = fused_infinite_type_name andalso 
44235
85e9dad3c187
distinguish THF syntax with and without choice (Satallax vs. LEOII)
blanchet
parents:
44121
diff
changeset

815 
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

816 
`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

817 
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

818 
`make_fixed_type_const s, 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

819 
map term Ts) 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

820 
 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

821 
 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

822 
in term end 
42562  823 

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

824 
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

825 
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

826 

42562  827 
(* 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

828 
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

829 

42562  830 
fun generic_mangled_type_name f (ATerm (name, [])) = f name 
831 
 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

832 
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

833 
^ ")" 
43692  834 
 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

835 

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

836 
fun mangled_type format type_enc = 
66b9b3fcd608
started cleaning up polymorphic monotonicitybased encodings, based on discussions with Nick Smallbone
blanchet
parents:
44394
diff
changeset

837 
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

838 

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

839 
fun make_simple_type s = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

840 
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

841 
s = tptp_individual_type then 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

842 
s 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

843 
else 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

844 
simple_type_prefix ^ ascii_of s 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

845 

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

846 
fun ho_type_from_ho_term type_enc pred_sym ary = 
42963  847 
let 
44593
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

848 
fun to_mangled_atype ty = 
42963  849 
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

850 
generic_mangled_type_name snd ty), []) 
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

851 
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

852 
 to_poly_atype _ = raise Fail "unexpected type abstraction" 
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

853 
val to_atype = 
ccf40af26ae9
implement more of the polymorphic simply typed format TFF(1)
blanchet
parents:
44591
diff
changeset

854 
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

855 
else to_mangled_atype 
42963  856 
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

857 
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

858 
 to_fo ary (ATerm (_, tys)) = to_afun to_atype (to_fo (ary  1)) tys 
43692  859 
 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

860 
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

861 
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

862 
 to_ho _ = raise Fail "unexpected type abstraction" 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

863 
in if is_type_enc_higher_order type_enc then to_ho else to_fo ary end 
42963  864 

43677  865 
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

866 
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

867 
o ho_term_from_typ format type_enc 
42963  868 

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

869 
fun mangled_const_name format type_enc T_args (s, s') = 
42963  870 
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

871 
val ty_args = T_args > map_filter (ho_term_for_type_arg format type_enc) 
42963  872 
fun type_suffix f g = 
873 
fold_rev (curry (op ^) o g o prefix mangled_type_sep 

874 
o generic_mangled_type_name f) ty_args "" 

875 
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

876 

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

877 
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

878 
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

879 

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

880 
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

881 
(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

882 
 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

883 
[] >> 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

884 
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

885 
(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

886 

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

887 
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

888 
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

889 
> 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

890 
(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

891 
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

892 
> 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

893 

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

894 
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

895 
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

896 
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

897 
(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

898 
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

899 

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

900 
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

901 
let 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

902 
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

903 
 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

904 
_ = 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

905 
(* Etaexpand "!!" and "??", to work around LEOII 1.2.8 parser 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

906 
limitation. This works in conjuction with special code in 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

907 
"ATP_Problem" that uses the syntactic sugar "!" and "?" whenever 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

908 
possible. *) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

909 
IAbs ((`I "P", p_T), 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

910 
IApp (IConst (`I ho_quant, T, []), 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

911 
IAbs ((`I "X", x_T), 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

912 
IApp (IConst (`I "P", p_T, []), 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

913 
IConst (`I "X", x_T, []))))) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

914 
 tweak_ho_quant _ _ _ = raise Fail "unexpected type for quantifier" 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

915 
fun intro top_level args (IApp (tm1, tm2)) = 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

916 
IApp (intro top_level (tm2 :: args) tm1, intro false [] tm2) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

917 
 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

918 
(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

919 
SOME proxy_base => 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

920 
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

921 
case (top_level, s) of 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

922 
(_, "c_False") => IConst (`I tptp_false, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

923 
 (_, "c_True") => IConst (`I tptp_true, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

924 
 (false, "c_Not") => IConst (`I tptp_not, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

925 
 (false, "c_conj") => IConst (`I tptp_and, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

926 
 (false, "c_disj") => IConst (`I tptp_or, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

927 
 (false, "c_implies") => IConst (`I tptp_implies, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

928 
 (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

929 
 (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

930 
 (false, s) => 
44097  931 
if is_tptp_equal s andalso length args = 2 then 
932 
IConst (`I tptp_equal, T, []) 

933 
else 

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

934 
(* Use a proxy even for partially applied THF0 equality, 
0a1dfc6365e9
first step towards polymorphic TFF + changed defaults for Vampire
blanchet
parents:
44587
diff
changeset

935 
because the LEOII and Satallax parsers complain about not 
0a1dfc6365e9
first step towards polymorphic TFF + changed defaults for Vampire
blanchet
parents:
44587
diff
changeset

936 
being able to infer the type of "=". *) 
44097  937 
IConst (proxy_base >> prefix const_prefix, T, T_args) 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

938 
 _ => IConst (name, T, []) 
42569
5737947e4c77
make sure that fequal keeps its type arguments for mangled type systems
blanchet
parents:
42568
diff
changeset

939 
else 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

940 
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

941 
 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

942 
else IConst (name, T, T_args)) 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

943 
 intro _ _ (IAbs (bound, tm)) = IAbs (bound, intro false [] tm) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

944 
 intro _ _ tm = tm 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

945 
in intro true [] end 
42568
7b9801a34836
no needless "fequal" proxies if "explicit_apply" is set + always have readable names
blanchet
parents:
42566
diff
changeset

946 

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

947 
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

948 
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

949 
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

950 
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

951 
 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

952 
 mangle (tm as IConst (name as (s, _), T, T_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

953 
(case strip_prefix_and_unascii const_prefix 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

954 
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

955 
 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

956 
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

957 
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

958 
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

959 
 _ => 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

960 
 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

961 
 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

962 
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

963 
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

964 
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

965 

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

966 
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

967 
 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

968 
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

969 
 chop_fun _ T = ([], T) 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

970 

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

971 
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

972 
 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

973 
let 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

974 
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

975 
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

976 
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

977 
in 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

978 
U_args ~~ T_args 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

979 
> map (fn (U, T) => 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

980 
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

981 
end 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

982 
handle TYPE _ => T_args 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

983 

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

984 
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

985 
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

986 
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

987 
 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

988 
 filt ary (IConst (name as (s, _), T, T_args)) = 
44773
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

989 
(case strip_prefix_and_unascii const_prefix s of 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

990 
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

991 
(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

992 
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

993 
[] 
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 
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

995 
T_args) 
44773
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

996 
 SOME s'' => 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

997 
let 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

998 
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

999 
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

1000 
 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

1001 
in 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1002 
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

1003 
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

1004 
 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

1005 
 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

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

1007 
> (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

1008 
 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

1009 
 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

1010 
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

1011 

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

1012 
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

1013 
let 
e701dabbfe37
perform mangling before computing symbol arity, to avoid needless "hAPP"s and "hBOOL"s
blanchet
parents:
44772
diff
changeset

1014 
val thy = Proof_Context.theory_of ctxt 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

1015 
fun do_term bs t atomic_Ts = 
44495  1016 
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

1017 
>> (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

1018 
#> 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

1019 
#> AAtom) 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

1020 
> 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

1021 
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

1022 
let 
15160cdc4688
precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents:
44402
diff
changeset

1023 
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

1024 
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

1025 
val name = 
15160cdc4688
precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents:
44402
diff
changeset

1026 
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

1027 
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

1028 
 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

1029 
 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

1030 
in 
15160cdc4688
precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents:
44402
diff
changeset

1031 
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

1032 
#>> mk_aquant q [(name, SOME T)] 
45316
08d84bdd5b37
improve handling of bound type variables (esp. for TFF1)
blanchet
parents:
45315
diff
changeset

1033 
##> union (op =) (atomic_types_of T) 
38518
54727b44e277
handle bound name conflicts gracefully in FOF translation
blanchet
parents:
38496
diff
changeset

1034 
end 
44403
15160cdc4688
precisely distinguish between universal and existential quantifiers, instead of assuming the worst (universal), for monotonicity analysis
blanchet
parents:
44402
diff
changeset

1035 
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

1036 
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

1037 
and do_formula bs pos t = 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1038 
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

1039 
@{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

1040 
 @{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

1041 
 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

1042 
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

1043 
 (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

1044 
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

1045 
 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

1046 
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

1047 
 (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

1048 
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

1049 
 @{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

1050 
 @{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

1051 
 @{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

1052 
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

1053 
 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

1054 
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

1055 
 _ => do_term bs t 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1056 
in do_formula [] end 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1057 

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

1058 
fun presimplify_term _ [] t = t 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
blanchet
parents:
43263
diff
changeset

1059 
 presimplify_term ctxt presimp_consts t = 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
blanchet
parents:
43263
diff
changeset

1060 
t > exists_Const (member (op =) presimp_consts o fst) t 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
blanchet
parents:
43263
diff
changeset

1061 
? (Skip_Proof.make_thm (Proof_Context.theory_of ctxt) 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
blanchet
parents:
43263
diff
changeset

1062 
#> Meson.presimplify ctxt 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
blanchet
parents:
43263
diff
changeset

1063 
#> prop_of) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1064 

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

1065 
fun concealed_bound_name j = atp_weak_prefix ^ string_of_int j 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1066 
fun conceal_bounds Ts t = 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1067 
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

1068 
(0 upto length Ts  1 ~~ Ts), t) 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1069 
fun reveal_bounds Ts = 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1070 
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

1071 
(0 upto length Ts  1 ~~ Ts)) 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1072 

43265  1073 
fun is_fun_equality (@{const_name HOL.eq}, 
1074 
Type (_, [Type (@{type_name fun}, _), _])) = true 

1075 
 is_fun_equality _ = false 

1076 

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

1077 
fun extensionalize_term ctxt t = 
43265  1078 
if exists_Const is_fun_equality t then 
1079 
let val thy = Proof_Context.theory_of ctxt in 

1080 
t > cterm_of thy > Meson.extensionalize_conv ctxt 

1081 
> prop_of > Logic.dest_equals > snd 

1082 
end 

1083 
else 

1084 
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

1085 

43862  1086 
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)
blanchet
parents:
43862
diff
changeset

1087 
let val thy = Proof_Context.theory_of ctxt in 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1088 
if Meson.is_fol_term thy t then 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1089 
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

1090 
else 
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

1091 
let 
44814
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1092 
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)
blanchet
parents:
43862
diff
changeset

1093 
case t of 
44814
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1094 
@{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:
43862
diff
changeset

1095 
 (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

1096 
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:
43862
diff
changeset

1097 
 (t0 as Const (@{const_name All}, _)) $ t1 => 
44814
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1098 
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

1099 
 (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

1100 
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:
43862
diff
changeset

1101 
 (t0 as Const (@{const_name Ex}, _)) $ t1 => 
44814
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1102 
trans Ts (t0 $ eta_expand Ts t1 1) 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1103 
 (t0 as @{const HOL.conj}) $ t1 $ t2 => 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1104 
t0 $ trans Ts t1 $ trans Ts t2 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1105 
 (t0 as @{const HOL.disj}) $ t1 $ t2 => 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1106 
t0 $ trans Ts t1 $ trans Ts t2 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1107 
 (t0 as @{const HOL.implies}) $ t1 $ t2 => 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1108 
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

1109 
 (t0 as Const (@{const_name HOL.eq}, Type (_, [@{typ bool}, _]))) 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1110 
$ t1 $ t2 => 
44814
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1111 
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

1112 
 _ => 
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

1113 
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

1114 
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

1115 
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

1116 
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

1117 
end 
43856
d636b053d4ff
move more lambdahandling logic to Sledgehammer, from ATP module, for formal dependency reasons
blanchet
parents:
43830
diff
changeset

1118 

43997  1119 
fun do_cheaply_conceal_lambdas Ts (t1 $ t2) = 
1120 
do_cheaply_conceal_lambdas Ts t1 

1121 
$ do_cheaply_conceal_lambdas Ts t2 

1122 
 do_cheaply_conceal_lambdas Ts (Abs (_, T, t)) = 

1123 
Free (polymorphic_free_prefix ^ serial_string (), 

1124 
T > fastype_of1 (T :: Ts, t)) 

1125 
 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

1126 

43862  1127 
fun do_introduce_combinators ctxt Ts t = 
42361  1128 
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

1129 
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

1130 
> 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

1131 
> 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

1132 
> 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

1133 
> reveal_bounds Ts 
38491
f7e51d981a9f
invoke Variable.export/import_term on the entire formula, to make sure that schematic variables don't get different indices in different subterms;
blanchet
parents:
38282
diff
changeset

1134 
end 
43862  1135 
(* A type variable of sort "{}" will make abstraction fail. *) 
43997  1136 
handle THM _ => t > do_cheaply_conceal_lambdas Ts 
43862  1137 
val introduce_combinators = simple_translate_lambdas do_introduce_combinators 
1138 

43864
58a7b3fdc193
fixed lambdaliftg: must ensure the formulas are in close form
blanchet
parents:
43863
diff
changeset

1139 
fun preprocess_abstractions_in_terms trans_lambdas facts = 
43862  1140 
let 
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

1141 
val (facts, lambda_ts) = 
44501  1142 
facts > map (snd o snd) > trans_lambdas 
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

1143 
>> map2 (fn (name, (kind, _)) => fn t => (name, (kind, t))) facts 
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

1144 
val lambda_facts = 
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 
map2 (fn t => fn j => 
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 
((lambda_fact_prefix ^ Int.toString j, Helper), (Axiom, 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 
lambda_ts (1 upto length lambda_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 
in (facts, lambda_facts) end 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1149 

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

1150 
(* Metis's use of "resolve_tac" freezes the schematic variables. We simulate the 
42353
7797efa897a1
correctly handle TFrees that occur in (local) facts  Metis did the right thing here but Sledgehammer was incorrectly generating spurious preconditions such as "dense_linorder(t_a)"
blanchet
parents:
42237
diff
changeset

1151 
same in Sledgehammer to prevent the discovery of unreplayable proofs. *) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1152 
fun freeze_term t = 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1153 
let 
44814
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1154 
fun freeze (t $ u) = freeze t $ freeze u 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1155 
 freeze (Abs (s, T, t)) = Abs (s, T, freeze t) 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1156 
 freeze (Var ((s, i), T)) = 
43863
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1157 
Free (atp_weak_prefix ^ s ^ "_" ^ string_of_int i, T) 
44814
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1158 
 freeze t = t 
52318464c73b
also implemented ghost version of the tagged encodings
blanchet
parents:
44812
diff
changeset

1159 
in t > exists_subterm is_Var t ? freeze end 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1160 

45202
62b8bcf24773
avoid generating too meta theorems  this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents:
45168
diff
changeset

1161 
fun presimp_prop ctxt presimp_consts role t = 
62b8bcf24773
avoid generating too meta theorems  this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents:
45168
diff
changeset

1162 
(let 
62b8bcf24773
avoid generating too meta theorems  this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents:
45168
diff
changeset

1163 
val thy = Proof_Context.theory_of ctxt 
62b8bcf24773
avoid generating too meta theorems  this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents:
45168
diff
changeset

1164 
val t = t > Envir.beta_eta_contract 
62b8bcf24773
avoid generating too meta theorems  this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents:
45168
diff
changeset

1165 
> transform_elim_prop 
62b8bcf24773
avoid generating too meta theorems  this sometimes leads to type errors, e.g. when "pp" is applied to a "prop" instead of a "bool"
blanchet
parents:
45168
diff
