author  blanchet 
Sun, 01 May 2011 18:37:24 +0200  
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child 42545  a14b602fb3d5 
permissions  rwrr 
40114  1 
(* Title: HOL/Tools/Sledgehammer/sledgehammer_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 Sledgehammer. 
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*) 
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40068  9 
signature SLEDGEHAMMER_ATP_TRANSLATE = 
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sig 
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type 'a fo_term = 'a ATP_Problem.fo_term 
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type 'a problem = 'a ATP_Problem.problem 
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type translated_formula 
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datatype type_system = 
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Many_Typed  
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Tags of bool  
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Args of bool  
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Mangled of bool  
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No_Types 
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val fact_prefix : string 
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val conjecture_prefix : string 
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val boolify_base : string 
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val explicit_app_base : string 
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val is_type_system_sound : type_system > bool 
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val type_system_types_dangerous_types : type_system > bool 
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val num_atp_type_args : theory > type_system > string > int 
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val unmangled_const : string > string * string fo_term list 
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val translate_atp_fact : 
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Proof.context > bool > (string * 'a) * thm 
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> translated_formula option * ((string * 'a) * thm) 
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val prepare_atp_problem : 
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Proof.context > bool > type_system > bool > term list > term 
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> (translated_formula option * ((string * 'a) * thm)) list 
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> string problem * string Symtab.table * int * int 
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* (string * 'a) list vector 
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val atp_problem_weights : string problem > (string * real) list 
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end; 
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structure Sledgehammer_ATP_Translate : SLEDGEHAMMER_ATP_TRANSLATE = 
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struct 
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open ATP_Problem 
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open Metis_Translate 
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open Sledgehammer_Util 
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val type_decl_prefix = "type_" 
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val sym_decl_prefix = "sym_" 
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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 = "crel_"; 
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val arity_clause_prefix = "arity_" 
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val tfree_prefix = "tfree_" 
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val boolify_base = "hBOOL" 
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val explicit_app_base = "hAPP" 
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val type_pred_base = "is" 
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val type_prefix = "ty_" 
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fun make_type ty = type_prefix ^ ascii_of ty 
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(* official TPTP TFF syntax *) 
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val tff_type_of_types = "$tType" 
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val tff_bool_type = "$o" 
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(* Freshness almost guaranteed! *) 
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val sledgehammer_weak_prefix = "Sledgehammer:" 
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type translated_formula = 
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{name: string, 
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kind: formula_kind, 
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combformula: (name, combtyp, combterm) formula, 
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ctypes_sorts: typ list} 
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fun map_combformula f 
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({name, kind, combformula, ctypes_sorts} : translated_formula) = 
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{name = name, kind = kind, combformula = f combformula, 
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ctypes_sorts = ctypes_sorts} : translated_formula 
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datatype type_system = 
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Many_Typed  
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Tags of bool  
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Args of bool  
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Mangled of bool  
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No_Types 
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fun is_type_system_sound Many_Typed = true 
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 is_type_system_sound (Tags full_types) = full_types 
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 is_type_system_sound (Args full_types) = full_types 
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 is_type_system_sound (Mangled full_types) = full_types 
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 is_type_system_sound No_Types = false 
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fun type_system_types_dangerous_types (Tags _) = true 
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 type_system_types_dangerous_types type_sys = is_type_system_sound type_sys 
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fun dont_need_type_args type_sys s = 
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s <> type_pred_base andalso 
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(member (op =) [@{const_name HOL.eq}] s orelse 
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case type_sys of 
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Many_Typed => false 
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 Tags full_types => full_types orelse s = explicit_app_base 
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 Args _ => s = explicit_app_base 
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 Mangled _ => s = explicit_app_base 
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 No_Types => true) 
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datatype type_arg_policy = No_Type_Args  Explicit_Type_Args  Mangled_Types 
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fun type_arg_policy type_sys s = 
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if dont_need_type_args type_sys s then 
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No_Type_Args 

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else 

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case type_sys of 

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Many_Typed => Mangled_Types 

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 Mangled _ => Mangled_Types 

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 _ => Explicit_Type_Args 

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fun num_atp_type_args thy type_sys s = 
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if type_arg_policy type_sys s = Explicit_Type_Args then 
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if s = type_pred_base then 1 else num_type_args thy s 
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else 
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0 
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fun atp_type_literals_for_types type_sys kind Ts = 
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if type_sys = No_Types then 
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[] 
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else 
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Ts > type_literals_for_types 
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> filter (fn TyLitVar _ => kind <> Conjecture 
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 TyLitFree _ => kind = Conjecture) 
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fun mk_anot phi = AConn (ANot, [phi]) 
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fun mk_aconn c phi1 phi2 = AConn (c, [phi1, phi2]) 
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fun mk_aconns c phis = 
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let val (phis', phi') = split_last phis in 
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fold_rev (mk_aconn c) phis' phi' 
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end 
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fun mk_ahorn [] phi = phi 
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 mk_ahorn phis psi = AConn (AImplies, [mk_aconns AAnd phis, psi]) 
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fun mk_aquant _ [] phi = phi 
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 mk_aquant q xs (phi as AQuant (q', xs', phi')) = 
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if q = q' then AQuant (q, xs @ xs', phi') else AQuant (q, xs, phi) 
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 mk_aquant q xs phi = AQuant (q, xs, phi) 
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fun close_universally atom_vars phi = 
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let 
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fun formula_vars bounds (AQuant (_, xs, phi)) = 
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formula_vars (map fst xs @ bounds) phi 
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 formula_vars bounds (AConn (_, phis)) = fold (formula_vars bounds) phis 
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 formula_vars bounds (AAtom tm) = 
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union (op =) (atom_vars tm [] 
153 
> filter_out (member (op =) bounds o fst)) 

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in mk_aquant AForall (formula_vars [] phi []) phi end 
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fun combterm_vars (CombApp (tm1, tm2)) = fold combterm_vars [tm1, tm2] 
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 combterm_vars (CombConst _) = I 
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 combterm_vars (CombVar (name, ty)) = insert (op =) (name, SOME ty) 
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val close_combformula_universally = close_universally combterm_vars 
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160 

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fun term_vars (ATerm (name as (s, _), tms)) = 
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is_atp_variable s ? insert (op =) (name, NONE) 
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#> fold term_vars tms 
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val close_formula_universally = close_universally term_vars 
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165 

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(* We are crossing our fingers that it doesn't clash with anything else. *) 
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167 
val mangled_type_sep = "\000" 
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168 

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fun mangled_combtyp_component f (CombTFree name) = f name 
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 mangled_combtyp_component f (CombTVar name) = 
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f name (* FIXME: shouldn't happen *) 
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(* raise Fail "impossible schematic type variable" *) 
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 mangled_combtyp_component f (CombType (name, tys)) = 
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f name ^ "(" ^ commas (map (mangled_combtyp_component f) tys) ^ ")" 
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175 

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fun mangled_combtyp ty = 
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(make_type (mangled_combtyp_component fst ty), 
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mangled_combtyp_component snd ty) 
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179 

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fun mangled_type_suffix f g tys = 
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fold_rev (curry (op ^) o g o prefix mangled_type_sep 
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o mangled_combtyp_component f) tys "" 
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183 

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fun mangled_const_name_fst ty_args s = 
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s ^ mangled_type_suffix fst ascii_of ty_args 
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fun mangled_const_name_snd ty_args s' = s' ^ mangled_type_suffix snd I ty_args 
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fun mangled_const_name ty_args (s, s') = 
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(mangled_const_name_fst ty_args s, mangled_const_name_snd ty_args s') 
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189 

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val parse_mangled_ident = 
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191 
Scan.many1 (not o member (op =) ["(", ")", ","]) >> implode 
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192 

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fun parse_mangled_type x = 
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(parse_mangled_ident 
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 Scan.optional ($$ "("  Scan.optional parse_mangled_types []  $$ ")") 
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[] >> ATerm) x 
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and parse_mangled_types x = 
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(parse_mangled_type ::: Scan.repeat ($$ ","  parse_mangled_type)) x 
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199 

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fun unmangled_type s = 
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s > suffix ")" > raw_explode 
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> Scan.finite Symbol.stopper 
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(Scan.error (!! (fn _ => raise Fail ("unrecognized mangled type " ^ 
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quote s)) parse_mangled_type)) 
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> fst 
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206 

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fun unmangled_const s = 
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let val ss = space_explode mangled_type_sep s in 
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(hd ss, map unmangled_type (tl ss)) 
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end 
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211 

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fun combformula_for_prop thy eq_as_iff = 
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let 
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fun do_term bs t ts = 
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combterm_from_term thy bs (Envir.eta_contract t) 
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>> AAtom > union (op =) ts 
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fun do_quant bs q s T t' = 
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let val s = Name.variant (map fst bs) s in 
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do_formula ((s, T) :: bs) t' 
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#>> mk_aquant q [(`make_bound_var s, SOME (combtyp_from_typ T))] 
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221 
end 
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and do_conn bs c t1 t2 = 
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do_formula bs t1 ##>> do_formula bs t2 
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#>> uncurry (mk_aconn c) 
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and do_formula bs t = 
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case t of 
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@{const Not} $ t1 => do_formula bs t1 #>> mk_anot 
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 Const (@{const_name All}, _) $ Abs (s, T, t') => 
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do_quant bs AForall s T t' 
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 Const (@{const_name Ex}, _) $ Abs (s, T, t') => 
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do_quant bs AExists s T t' 
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 @{const HOL.conj} $ t1 $ t2 => do_conn bs AAnd t1 t2 
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 @{const HOL.disj} $ t1 $ t2 => do_conn bs AOr t1 t2 
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 @{const HOL.implies} $ t1 $ t2 => do_conn bs AImplies t1 t2 
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 Const (@{const_name HOL.eq}, Type (_, [@{typ bool}, _])) $ t1 $ t2 => 
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if eq_as_iff then do_conn bs AIff t1 t2 else do_term bs t 
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 _ => do_term bs t 
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238 
in do_formula [] end 
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239 

38618  240 
val presimplify_term = prop_of o Meson.presimplify oo Skip_Proof.make_thm 
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241 

41491  242 
fun concealed_bound_name j = sledgehammer_weak_prefix ^ string_of_int j 
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243 
fun conceal_bounds Ts t = 
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subst_bounds (map (Free o apfst concealed_bound_name) 
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(0 upto length Ts  1 ~~ Ts), t) 
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fun reveal_bounds Ts = 
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subst_atomic (map (fn (j, T) => (Free (concealed_bound_name j, T), Bound j)) 
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(0 upto length Ts  1 ~~ Ts)) 
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249 

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250 
(* Removes the lambdas from an equation of the form "t = (%x. u)". 
39890  251 
(Cf. "extensionalize_theorem" in "Meson_Clausify".) *) 
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fun extensionalize_term t = 
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253 
let 
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fun aux j (@{const Trueprop} $ t') = @{const Trueprop} $ aux j t' 
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255 
 aux j (t as Const (s, Type (_, [Type (_, [_, T']), 
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256 
Type (_, [_, res_T])])) 
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257 
$ t2 $ Abs (var_s, var_T, t')) = 
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if s = @{const_name HOL.eq} orelse s = @{const_name "=="} then 
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259 
let val var_t = Var ((var_s, j), var_T) in 
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260 
Const (s, T' > T' > res_T) 
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261 
$ betapply (t2, var_t) $ subst_bound (var_t, t') 
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262 
> aux (j + 1) 
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263 
end 
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264 
else 
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265 
t 
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266 
 aux _ t = t 
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267 
in aux (maxidx_of_term t + 1) t end 
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268 

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269 
fun introduce_combinators_in_term ctxt kind t = 
42361  270 
let val thy = Proof_Context.theory_of ctxt in 
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271 
if Meson.is_fol_term thy t then 
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t 
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273 
else 
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274 
let 
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275 
fun aux Ts t = 
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276 
case t of 
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277 
@{const Not} $ t1 => @{const Not} $ aux Ts t1 
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278 
 (t0 as Const (@{const_name All}, _)) $ Abs (s, T, t') => 
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279 
t0 $ Abs (s, T, aux (T :: Ts) t') 
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 (t0 as Const (@{const_name All}, _)) $ t1 => 
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281 
aux Ts (t0 $ eta_expand Ts t1 1) 
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282 
 (t0 as Const (@{const_name Ex}, _)) $ Abs (s, T, t') => 
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283 
t0 $ Abs (s, T, aux (T :: Ts) t') 
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284 
 (t0 as Const (@{const_name Ex}, _)) $ t1 => 
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285 
aux Ts (t0 $ eta_expand Ts t1 1) 
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286 
 (t0 as @{const HOL.conj}) $ t1 $ t2 => t0 $ aux Ts t1 $ aux Ts t2 
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287 
 (t0 as @{const HOL.disj}) $ t1 $ t2 => t0 $ aux Ts t1 $ aux Ts t2 
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 (t0 as @{const HOL.implies}) $ t1 $ t2 => t0 $ aux Ts t1 $ aux Ts t2 
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289 
 (t0 as Const (@{const_name HOL.eq}, Type (_, [@{typ bool}, _]))) 
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290 
$ t1 $ t2 => 
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291 
t0 $ aux Ts t1 $ aux Ts t2 
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292 
 _ => if not (exists_subterm (fn Abs _ => true  _ => false) t) then 
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293 
t 
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294 
else 
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295 
t > conceal_bounds Ts 
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296 
> Envir.eta_contract 
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297 
> cterm_of thy 
39890  298 
> Meson_Clausify.introduce_combinators_in_cterm 
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299 
> prop_of > Logic.dest_equals > snd 
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300 
> reveal_bounds Ts 
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301 
val (t, ctxt') = Variable.import_terms true [t] ctxt >> the_single 
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302 
in t > aux [] > singleton (Variable.export_terms ctxt' ctxt) end 
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303 
handle THM _ => 
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304 
(* A type variable of sort "{}" will make abstraction fail. *) 
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305 
if kind = Conjecture then HOLogic.false_const 
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306 
else HOLogic.true_const 
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307 
end 
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308 

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309 
(* Metis's use of "resolve_tac" freezes the schematic variables. We simulate the 
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310 
same in Sledgehammer to prevent the discovery of unreplayable proofs. *) 
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311 
fun freeze_term t = 
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312 
let 
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313 
fun aux (t $ u) = aux t $ aux u 
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314 
 aux (Abs (s, T, t)) = Abs (s, T, aux t) 
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315 
 aux (Var ((s, i), T)) = 
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316 
Free (sledgehammer_weak_prefix ^ s ^ "_" ^ string_of_int i, T) 
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317 
 aux t = t 
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318 
in t > exists_subterm is_Var t ? aux end 
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319 

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320 
(* making fact and conjecture formulas *) 
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321 
fun make_formula ctxt eq_as_iff presimp name kind t = 
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322 
let 
42361  323 
val thy = Proof_Context.theory_of ctxt 
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324 
val t = t > Envir.beta_eta_contract 
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325 
> transform_elim_term 
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326 
> Object_Logic.atomize_term thy 
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327 
val need_trueprop = (fastype_of t = HOLogic.boolT) 
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328 
val t = t > need_trueprop ? HOLogic.mk_Trueprop 
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329 
> extensionalize_term 
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330 
> presimp ? presimplify_term thy 
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331 
> perhaps (try (HOLogic.dest_Trueprop)) 
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332 
> introduce_combinators_in_term ctxt kind 
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333 
> kind <> Axiom ? freeze_term 
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334 
val (combformula, ctypes_sorts) = 
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335 
combformula_for_prop thy eq_as_iff t [] 
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336 
in 
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337 
{name = name, combformula = combformula, kind = kind, 
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338 
ctypes_sorts = ctypes_sorts} 
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339 
end 
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340 

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341 
fun make_fact ctxt keep_trivial eq_as_iff presimp ((name, _), th) = 
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342 
case (keep_trivial, 
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343 
make_formula ctxt eq_as_iff presimp name Axiom (prop_of th)) of 
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344 
(false, {combformula = AAtom (CombConst (("c_True", _), _, _)), ...}) => 
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345 
NONE 
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346 
 (_, formula) => SOME formula 
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347 
fun make_conjecture ctxt ts = 
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348 
let val last = length ts  1 in 
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349 
map2 (fn j => make_formula ctxt true true (string_of_int j) 
38613
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350 
(if j = last then Conjecture else Hypothesis)) 
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351 
(0 upto last) ts 
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352 
end 
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353 

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354 
(** Helper facts **) 
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355 

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356 
fun formula_map f (AQuant (q, xs, phi)) = AQuant (q, xs, formula_map f phi) 
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357 
 formula_map f (AConn (c, phis)) = AConn (c, map (formula_map f) phis) 
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358 
 formula_map f (AAtom tm) = AAtom (f tm) 
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359 

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360 
fun formula_fold f (AQuant (_, _, phi)) = formula_fold f phi 
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361 
 formula_fold f (AConn (_, phis)) = fold (formula_fold f) phis 
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362 
 formula_fold f (AAtom tm) = f tm 
41313
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optionally supply constant weights to E  turned off by default until properly parameterized
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363 

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364 
fun count_term (ATerm ((s, _), tms)) = 
42542
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365 
(if is_atp_variable s then I else Symtab.map_entry s (Integer.add 1)) 
41140
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366 
#> fold count_term tms 
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367 
fun count_formula x = formula_fold count_term x 
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368 

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369 
val init_counters = 
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370 
metis_helpers > map fst > sort_distinct string_ord > map (rpair 0) 
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371 
> Symtab.make 
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372 

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373 
(* ### FIXME: do this on repaired combterms *) 
42521
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get rid of "explicit_forall" proverspecific option, even if that means some clutter  foralls will be necessary to attach types to variables
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374 
fun get_helper_facts ctxt type_sys formulas = 
38282
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375 
let 
42449
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376 
val no_dangerous_types = type_system_types_dangerous_types type_sys 
41140
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377 
val ct = init_counters > fold count_formula formulas 
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378 
fun is_used s = the (Symtab.lookup ct s) > 0 
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379 
fun dub c needs_full_types (th, j) = 
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380 
((c ^ "_" ^ string_of_int j ^ (if needs_full_types then "ft" else ""), 
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381 
false), th) 
42544
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382 
fun make_facts eq_as_iff = map_filter (make_fact ctxt false eq_as_iff false) 
38282
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383 
in 
41145
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384 
(metis_helpers 
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385 
> filter (is_used o fst) 
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386 
> maps (fn (c, (needs_full_types, ths)) => 
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387 
if needs_full_types andalso not no_dangerous_types then 
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388 
[] 
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389 
else 
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390 
ths ~~ (1 upto length ths) 
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391 
> map (dub c needs_full_types) 
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392 
> make_facts (not needs_full_types)), 
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393 
if type_sys = Tags false then 
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394 
let 
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395 
fun var s = ATerm (`I s, []) 
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396 
fun tag tm = ATerm (`I type_tag_name, [var "X", tm]) 
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397 
in 
42538
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generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
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398 
[Formula (Fof, helper_prefix ^ ascii_of "ti_ti", Axiom, 
42527
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reintroduced constructor for formulas, and automatically detect which logic to use (TFF or FOF) to avoid clutter
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399 
AAtom (ATerm (`I "equal", 
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400 
[tag (tag (var "Y")), tag (var "Y")])) 
42529
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added "useful_info" argument to ATP formulas  this will probably be useful later to specify intro, simp, elim to SPASS
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401 
> close_formula_universally, NONE, NONE)] 
41145
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402 
end 
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403 
else 
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404 
[]) 
38282
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405 
end 
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406 

42544
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407 
fun translate_atp_fact ctxt keep_trivial = 
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408 
`(make_fact ctxt keep_trivial true true) 
39004
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409 

41134  410 
fun translate_formulas ctxt type_sys hyp_ts concl_t rich_facts = 
38282
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411 
let 
42361  412 
val thy = Proof_Context.theory_of ctxt 
41091
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413 
val fact_ts = map (prop_of o snd o snd) rich_facts 
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414 
val (facts, fact_names) = 
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415 
rich_facts 
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416 
> map_filter (fn (NONE, _) => NONE 
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417 
 (SOME fact, (name, _)) => SOME (fact, name)) 
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418 
> ListPair.unzip 
40204
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standardize on "fact" terminology (vs. "axiom" or "theorem") in Sledgehammer  but keep "Axiom" in the lowerlevel "ATP_Problem" module
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419 
(* Remove existing facts from the conjecture, as this can dramatically 
39005  420 
boost an ATP's performance (for some reason). *) 
40204
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standardize on "fact" terminology (vs. "axiom" or "theorem") in Sledgehammer  but keep "Axiom" in the lowerlevel "ATP_Problem" module
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421 
val hyp_ts = hyp_ts > filter_out (member (op aconv) fact_ts) 
38282
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422 
val goal_t = Logic.list_implies (hyp_ts, concl_t) 
42353
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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)"
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diff
changeset

423 
val all_ts = goal_t :: fact_ts 
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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)"
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424 
val subs = tfree_classes_of_terms all_ts 
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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)"
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425 
val supers = tvar_classes_of_terms all_ts 
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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)"
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426 
val tycons = type_consts_of_terms thy all_ts 
42544
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427 
val conjs = make_conjecture ctxt (hyp_ts @ [concl_t]) 
41137
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implemented "no_types" encoding, which is too unsound to be useful but can come in handy for evaluations
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428 
val (supers', arity_clauses) = 
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changeset

429 
if type_sys = No_Types then ([], []) 
8b634031b2a5
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430 
else make_arity_clauses thy tycons supers 
38282
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431 
val class_rel_clauses = make_class_rel_clauses thy subs supers' 
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432 
in 
41313
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
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41211
diff
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433 
(fact_names > map single, (conjs, facts, class_rel_clauses, arity_clauses)) 
38282
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changeset

434 
end 
319c59682c51
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changeset

435 

41138
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436 
fun tag_with_type ty t = ATerm (`I type_tag_name, [ty, t]) 
38282
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diff
changeset

437 

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changeset

438 
fun fo_term_for_combtyp (CombTVar name) = ATerm (name, []) 
319c59682c51
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439 
 fo_term_for_combtyp (CombTFree name) = ATerm (name, []) 
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440 
 fo_term_for_combtyp (CombType (name, tys)) = 
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441 
ATerm (name, map fo_term_for_combtyp tys) 
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changeset

442 

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443 
fun fo_literal_for_type_literal (TyLitVar (class, name)) = 
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444 
(true, ATerm (class, [ATerm (name, [])])) 
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445 
 fo_literal_for_type_literal (TyLitFree (class, name)) = 
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446 
(true, ATerm (class, [ATerm (name, [])])) 
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changeset

447 

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448 
fun formula_for_fo_literal (pos, t) = AAtom t > not pos ? mk_anot 
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changeset

449 

41138
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450 
(* Finite types such as "unit", "bool", "bool * bool", and "bool => bool" are 
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451 
considered dangerous because their "exhaust" properties can easily lead to 
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452 
unsound ATP proofs. The checks below are an (unsound) approximation of 
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diff
changeset

453 
finiteness. *) 
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diff
changeset

454 

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455 
fun is_dtyp_dangerous _ (Datatype_Aux.DtTFree _) = true 
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456 
 is_dtyp_dangerous ctxt (Datatype_Aux.DtType (s, Us)) = 
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changeset

457 
is_type_constr_dangerous ctxt s andalso forall (is_dtyp_dangerous ctxt) Us 
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changeset

458 
 is_dtyp_dangerous _ (Datatype_Aux.DtRec _) = false 
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changeset

459 
and is_type_dangerous ctxt (Type (s, Ts)) = 
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changeset

460 
is_type_constr_dangerous ctxt s andalso forall (is_type_dangerous ctxt) Ts 
41140
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
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changeset

461 
 is_type_dangerous _ _ = false 
41138
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changeset

462 
and is_type_constr_dangerous ctxt s = 
42361  463 
let val thy = Proof_Context.theory_of ctxt in 
41138
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changeset

464 
case Datatype_Data.get_info thy s of 
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465 
SOME {descr, ...} => 
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466 
forall (fn (_, (_, _, constrs)) => 
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changeset

467 
forall (forall (is_dtyp_dangerous ctxt) o snd) constrs) descr 
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468 
 NONE => 
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469 
case Typedef.get_info ctxt s of 
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470 
({rep_type, ...}, _) :: _ => is_type_dangerous ctxt rep_type 
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changeset

471 
 [] => true 
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changeset

472 
end 
eb80538166b6
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diff
changeset

473 

eb80538166b6
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changeset

474 
fun is_combtyp_dangerous ctxt (CombType ((s, _), tys)) = 
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changeset

475 
(case strip_prefix_and_unascii type_const_prefix s of 
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476 
SOME s' => forall (is_combtyp_dangerous ctxt) tys andalso 
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diff
changeset

477 
is_type_constr_dangerous ctxt (invert_const s') 
eb80538166b6
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diff
changeset

478 
 NONE => false) 
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changeset

479 
 is_combtyp_dangerous _ _ = false 
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diff
changeset

480 

eb80538166b6
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diff
changeset

481 
fun should_tag_with_type ctxt (Tags full_types) ty = 
eb80538166b6
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diff
changeset

482 
full_types orelse is_combtyp_dangerous ctxt ty 
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diff
changeset

483 
 should_tag_with_type _ _ _ = false 
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diff
changeset

484 

41140
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
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diff
changeset

485 
val fname_table = 
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
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parents:
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diff
changeset

486 
[("c_False", (0, ("c_fFalse", @{const_name Metis.fFalse}))), 
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
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diff
changeset

487 
("c_True", (0, ("c_fTrue", @{const_name Metis.fTrue}))), 
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
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diff
changeset

488 
("c_Not", (1, ("c_fNot", @{const_name Metis.fNot}))), 
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
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parents:
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diff
changeset

489 
("c_conj", (2, ("c_fconj", @{const_name Metis.fconj}))), 
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
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parents:
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diff
changeset

490 
("c_disj", (2, ("c_fdisj", @{const_name Metis.fdisj}))), 
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
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parents:
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diff
changeset

491 
("c_implies", (2, ("c_fimplies", @{const_name Metis.fimplies}))), 
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
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41138
diff
changeset

492 
("equal", (2, ("c_fequal", @{const_name Metis.fequal})))] 
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
blanchet
parents:
41138
diff
changeset

493 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

494 
fun repair_combterm_consts type_sys = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

495 
let 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

496 
fun aux (CombApp tmp) = CombApp (pairself aux tmp) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

497 
 aux (CombConst (name as (s, _), ty, ty_args)) = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

498 
(case strip_prefix_and_unascii const_prefix s of 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

499 
NONE => (name, ty_args) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

500 
 SOME s'' => 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

501 
let val s'' = invert_const s'' in 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

502 
case type_arg_policy type_sys s'' of 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

503 
No_Type_Args => (name, []) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

504 
 Explicit_Type_Args => (name, ty_args) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

505 
 Mangled_Types => (mangled_const_name ty_args name, []) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

506 
end) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

507 
> (fn (name, ty_args) => CombConst (name, ty, ty_args)) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

508 
 aux tm = tm 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

509 
in aux end 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

510 

42531
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

511 
fun pred_combtyp ty = 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

512 
case combtyp_from_typ @{typ "unit => bool"} of 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

513 
CombType (name, [_, bool_ty]) => CombType (name, [ty, bool_ty]) 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

514 
 _ => raise Fail "expected twoargument type constructor" 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

515 

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

516 
fun type_pred_combatom type_sys ty tm = 
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

517 
CombApp (CombConst ((const_prefix ^ type_pred_base, type_pred_base), 
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

518 
pred_combtyp ty, [ty]), tm) 
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

519 
> repair_combterm_consts type_sys 
42534
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

520 
> AAtom 
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

521 

42530  522 
fun formula_for_combformula ctxt type_sys = 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

523 
let 
42530  524 
fun do_term top_level u = 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

525 
let 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

526 
val (head, args) = strip_combterm_comb u 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

527 
val (x, ty_args) = 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

528 
case head of 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

529 
CombConst (name as (s, s'), _, ty_args) => 
41140
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
blanchet
parents:
41138
diff
changeset

530 
(case AList.lookup (op =) fname_table s of 
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
blanchet
parents:
41138
diff
changeset

531 
SOME (n, fname) => 
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

532 
(*### FIXME: do earlier? *) 
41150
54b3c9c05664
make sure firstorder occurrences of "False" and "True" are handled correctly  this broke when adding proper support for higherorder occurrences
blanchet
parents:
41149
diff
changeset

533 
(if top_level andalso length args = n then 
54b3c9c05664
make sure firstorder occurrences of "False" and "True" are handled correctly  this broke when adding proper support for higherorder occurrences
blanchet
parents:
41149
diff
changeset

534 
case s of 
54b3c9c05664
make sure firstorder occurrences of "False" and "True" are handled correctly  this broke when adding proper support for higherorder occurrences
blanchet
parents:
41149
diff
changeset

535 
"c_False" => ("$false", s') 
54b3c9c05664
make sure firstorder occurrences of "False" and "True" are handled correctly  this broke when adding proper support for higherorder occurrences
blanchet
parents:
41149
diff
changeset

536 
 "c_True" => ("$true", s') 
54b3c9c05664
make sure firstorder occurrences of "False" and "True" are handled correctly  this broke when adding proper support for higherorder occurrences
blanchet
parents:
41149
diff
changeset

537 
 _ => name 
54b3c9c05664
make sure firstorder occurrences of "False" and "True" are handled correctly  this broke when adding proper support for higherorder occurrences
blanchet
parents:
41149
diff
changeset

538 
else 
54b3c9c05664
make sure firstorder occurrences of "False" and "True" are handled correctly  this broke when adding proper support for higherorder occurrences
blanchet
parents:
41149
diff
changeset

539 
fname, []) 
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

540 
 NONE => (name, ty_args)) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

541 
 CombVar (name, _) => (name, []) 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

542 
 CombApp _ => raise Fail "impossible \"CombApp\"" 
42530  543 
val t = ATerm (x, map fo_term_for_combtyp ty_args @ 
544 
map (do_term false) args) 

41138
eb80538166b6
implemented partiallytyped "tags" type encoding
blanchet
parents:
41137
diff
changeset

545 
val ty = combtyp_of u 
42530  546 
in 
547 
t > (if should_tag_with_type ctxt type_sys ty then 

548 
tag_with_type (fo_term_for_combtyp ty) 

549 
else 

550 
I) 

551 
end 

42531
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

552 
val do_bound_type = 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

553 
if type_sys = Many_Typed then SOME o mangled_combtyp else K NONE 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

554 
val do_out_of_bound_type = 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

555 
if member (op =) [Args true, Mangled true] type_sys then 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

556 
(fn (s, ty) => 
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

557 
type_pred_combatom type_sys ty (CombVar (s, ty)) 
42534
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

558 
> formula_for_combformula ctxt type_sys > SOME) 
42531
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

559 
else 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

560 
K NONE 
42530  561 
fun do_formula (AQuant (q, xs, phi)) = 
42531
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

562 
AQuant (q, xs > map (apsnd (fn NONE => NONE 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

563 
 SOME ty => do_bound_type ty)), 
42534
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

564 
(if q = AForall then mk_ahorn else fold_rev (mk_aconn AAnd)) 
42531
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

565 
(map_filter 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

566 
(fn (_, NONE) => NONE 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

567 
 (s, SOME ty) => do_out_of_bound_type (s, ty)) xs) 
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

568 
(do_formula phi)) 
42530  569 
 do_formula (AConn (c, phis)) = AConn (c, map do_formula phis) 
570 
 do_formula (AAtom tm) = AAtom (do_term true tm) 

571 
in do_formula end 

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

572 

41138
eb80538166b6
implemented partiallytyped "tags" type encoding
blanchet
parents:
41137
diff
changeset

573 
fun formula_for_fact ctxt type_sys 
40204
da97d75e20e6
standardize on "fact" terminology (vs. "axiom" or "theorem") in Sledgehammer  but keep "Axiom" in the lowerlevel "ATP_Problem" module
blanchet
parents:
40145
diff
changeset

574 
({combformula, ctypes_sorts, ...} : translated_formula) = 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

575 
mk_ahorn (map (formula_for_fo_literal o fo_literal_for_type_literal) 
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

576 
(atp_type_literals_for_types type_sys Axiom ctypes_sorts)) 
42522
413b56894f82
close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents:
42521
diff
changeset

577 
(formula_for_combformula ctxt type_sys 
413b56894f82
close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents:
42521
diff
changeset

578 
(close_combformula_universally combformula)) 
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

579 
> close_formula_universally 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

580 

42538
9e3e45636459
generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
blanchet
parents:
42534
diff
changeset

581 
fun logic_for_type_sys Many_Typed = Tff 
9e3e45636459
generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
blanchet
parents:
42534
diff
changeset

582 
 logic_for_type_sys _ = Fof 
9e3e45636459
generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
blanchet
parents:
42534
diff
changeset

583 

42180
a6c141925a8a
added monomorphization option to Sledgehammer ATPs  this looks promising but is still off by default
blanchet
parents:
41990
diff
changeset

584 
(* Each fact is given a unique fact number to avoid name clashes (e.g., because 
a6c141925a8a
added monomorphization option to Sledgehammer ATPs  this looks promising but is still off by default
blanchet
parents:
41990
diff
changeset

585 
of monomorphization). The TPTP explicitly forbids name clashes, and some of 
a6c141925a8a
added monomorphization option to Sledgehammer ATPs  this looks promising but is still off by default
blanchet
parents:
41990
diff
changeset

586 
the remote provers might care. *) 
a6c141925a8a
added monomorphization option to Sledgehammer ATPs  this looks promising but is still off by default
blanchet
parents:
41990
diff
changeset

587 
fun problem_line_for_fact ctxt prefix type_sys 
a6c141925a8a
added monomorphization option to Sledgehammer ATPs  this looks promising but is still off by default
blanchet
parents:
41990
diff
changeset

588 
(j, formula as {name, kind, ...}) = 
42538
9e3e45636459
generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
blanchet
parents:
42534
diff
changeset

589 
Formula (logic_for_type_sys type_sys, 
9e3e45636459
generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
blanchet
parents:
42534
diff
changeset

590 
prefix ^ string_of_int j ^ "_" ^ ascii_of name, kind, 
9e3e45636459
generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
blanchet
parents:
42534
diff
changeset

591 
formula_for_fact ctxt type_sys formula, NONE, NONE) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

592 

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

593 
fun problem_line_for_class_rel_clause (ClassRelClause {name, subclass, 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

594 
superclass, ...}) = 
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

595 
let val ty_arg = ATerm (`I "T", []) in 
42538
9e3e45636459
generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
blanchet
parents:
42534
diff
changeset

596 
Formula (Fof, class_rel_clause_prefix ^ ascii_of name, Axiom, 
42527
6a9458524f01
reintroduced constructor for formulas, and automatically detect which logic to use (TFF or FOF) to avoid clutter
blanchet
parents:
42526
diff
changeset

597 
AConn (AImplies, [AAtom (ATerm (subclass, [ty_arg])), 
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

598 
AAtom (ATerm (superclass, [ty_arg]))]) 
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

599 
> close_formula_universally, NONE, NONE) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

600 
end 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

601 

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

602 
fun fo_literal_for_arity_literal (TConsLit (c, t, args)) = 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

603 
(true, ATerm (c, [ATerm (t, map (fn arg => ATerm (arg, [])) args)])) 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

604 
 fo_literal_for_arity_literal (TVarLit (c, sort)) = 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

605 
(false, ATerm (c, [ATerm (sort, [])])) 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

606 

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

607 
fun problem_line_for_arity_clause (ArityClause {name, conclLit, premLits, 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

608 
...}) = 
42538
9e3e45636459
generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
blanchet
parents:
42534
diff
changeset

609 
Formula (Fof, arity_clause_prefix ^ ascii_of name, Axiom, 
42527
6a9458524f01
reintroduced constructor for formulas, and automatically detect which logic to use (TFF or FOF) to avoid clutter
blanchet
parents:
42526
diff
changeset

610 
mk_ahorn (map (formula_for_fo_literal o apfst not 
6a9458524f01
reintroduced constructor for formulas, and automatically detect which logic to use (TFF or FOF) to avoid clutter
blanchet
parents:
42526
diff
changeset

611 
o fo_literal_for_arity_literal) premLits) 
6a9458524f01
reintroduced constructor for formulas, and automatically detect which logic to use (TFF or FOF) to avoid clutter
blanchet
parents:
42526
diff
changeset

612 
(formula_for_fo_literal 
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

613 
(fo_literal_for_arity_literal conclLit)) 
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

614 
> close_formula_universally, NONE, NONE) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

615 

41138
eb80538166b6
implemented partiallytyped "tags" type encoding
blanchet
parents:
41137
diff
changeset

616 
fun problem_line_for_conjecture ctxt type_sys 
40114  617 
({name, kind, combformula, ...} : translated_formula) = 
42538
9e3e45636459
generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
blanchet
parents:
42534
diff
changeset

618 
Formula (logic_for_type_sys type_sys, conjecture_prefix ^ name, kind, 
42527
6a9458524f01
reintroduced constructor for formulas, and automatically detect which logic to use (TFF or FOF) to avoid clutter
blanchet
parents:
42526
diff
changeset

619 
formula_for_combformula ctxt type_sys 
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

620 
(close_combformula_universally combformula) 
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

621 
> close_formula_universally, NONE, NONE) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

622 

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

623 
fun free_type_literals type_sys ({ctypes_sorts, ...} : translated_formula) = 
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

624 
ctypes_sorts > atp_type_literals_for_types type_sys Conjecture 
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

625 
> map fo_literal_for_type_literal 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

626 

39975
7c50d5ca5c04
avoid generating several formulas with the same name ("tfrees")
blanchet
parents:
39954
diff
changeset

627 
fun problem_line_for_free_type j lit = 
42538
9e3e45636459
generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
blanchet
parents:
42534
diff
changeset

628 
Formula (Fof, tfree_prefix ^ string_of_int j, Hypothesis, 
42529
747736d8b47e
added "useful_info" argument to ATP formulas  this will probably be useful later to specify intro, simp, elim to SPASS
blanchet
parents:
42528
diff
changeset

629 
formula_for_fo_literal lit, NONE, NONE) 
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

630 
fun problem_lines_for_free_types type_sys facts = 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

631 
let 
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

632 
val litss = map (free_type_literals type_sys) facts 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

633 
val lits = fold (union (op =)) litss [] 
39975
7c50d5ca5c04
avoid generating several formulas with the same name ("tfrees")
blanchet
parents:
39954
diff
changeset

634 
in map2 problem_line_for_free_type (0 upto length lits  1) lits end 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

635 

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

636 
(** "hBOOL" and "hAPP" **) 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

637 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

638 
type repair_info = {pred_sym: bool, min_arity: int, max_arity: int} 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

639 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

640 
fun consider_combterm_for_repair top_level tm = 
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

641 
let val (head, args) = strip_combterm_comb tm 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

642 
(case head of 
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

643 
CombConst ((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

644 
if String.isPrefix bound_var_prefix s then 
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

645 
I 
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

646 
else 
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

647 
let val n = length args 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

648 
Symtab.map_default 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

649 
(s, {pred_sym = true, min_arity = n, max_arity = 0}) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

650 
(fn {pred_sym, min_arity, max_arity} => 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

651 
{pred_sym = pred_sym andalso top_level, 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

652 
min_arity = Int.min (n, min_arity), 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

653 
max_arity = Int.max (n, max_arity)}) 
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

654 
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

655 
 _ => I) 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

656 
#> fold (consider_combterm_for_repair false) args 
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

657 
end 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

658 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

659 
fun consider_fact_for_repair ({combformula, ...} : translated_formula) = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

660 
formula_fold (consider_combterm_for_repair true) combformula 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

661 

42539
f6ba908b8b27
generate typing for "hBOOL" in "Many_Typed" mode + tuning
blanchet
parents:
42538
diff
changeset

662 
(* The "equal" entry is needed for helper facts if the problem otherwise does 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

663 
not involve equality. The "hBOOL" and "hAPP" entries are needed for symbol 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

664 
declarations. *) 
42539
f6ba908b8b27
generate typing for "hBOOL" in "Many_Typed" mode + tuning
blanchet
parents:
42538
diff
changeset

665 
val default_entries = 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

666 
[("equal", {pred_sym = true, min_arity = 2, max_arity = 2}), 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

667 
(make_fixed_const boolify_base, 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

668 
{pred_sym = true, min_arity = 1, max_arity = 1}), 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

669 
(make_fixed_const explicit_app_base, 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

670 
{pred_sym = false, min_arity = 2, max_arity = 2})] 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

671 
(* FIXME: last two entries needed? ### *) 
41140
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
blanchet
parents:
41138
diff
changeset

672 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

673 
fun sym_table_for_facts explicit_apply facts = 
41140
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
blanchet
parents:
41138
diff
changeset

674 
if explicit_apply then 
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
blanchet
parents:
41138
diff
changeset

675 
NONE 
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
blanchet
parents:
41138
diff
changeset

676 
else 
42539
f6ba908b8b27
generate typing for "hBOOL" in "Many_Typed" mode + tuning
blanchet
parents:
42538
diff
changeset

677 
SOME (Symtab.empty > fold Symtab.default default_entries 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

678 
> fold consider_fact_for_repair facts) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

679 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

680 
fun min_arity_of _ _ (SOME sym_tab) s = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

681 
(case Symtab.lookup sym_tab s of 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

682 
SOME ({min_arity, ...} : repair_info) => min_arity 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

683 
 NONE => 0) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

684 
 min_arity_of thy type_sys NONE s = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

685 
if s = "equal" orelse s = type_tag_name orelse 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

686 
String.isPrefix type_const_prefix s orelse 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

687 
String.isPrefix class_prefix s then 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

688 
16383 (* large number *) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

689 
else case strip_prefix_and_unascii const_prefix s of 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

690 
SOME s' => s' > unmangled_const > fst > invert_const 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

691 
> num_atp_type_args thy type_sys 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

692 
 NONE => 0 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

693 

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

694 
(* True if the constant ever appears outside of the toplevel position in 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

695 
literals, or if it appears with different arities (e.g., because of different 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

696 
type instantiations). If false, the constant always receives all of its 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

697 
arguments and is used as a predicate. *) 
42520  698 
fun is_pred_sym NONE s = 
38589
b03f8fe043ec
added "max_relevant_per_iter" option to Sledgehammer
blanchet
parents:
38518
diff
changeset

699 
s = "equal" orelse s = "$false" orelse s = "$true" orelse 
b03f8fe043ec
added "max_relevant_per_iter" option to Sledgehammer
blanchet
parents:
38518
diff
changeset

700 
String.isPrefix type_const_prefix s orelse String.isPrefix class_prefix s 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

701 
 is_pred_sym (SOME sym_tab) s = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

702 
case Symtab.lookup sym_tab s of 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

703 
SOME {pred_sym, min_arity, max_arity} => 
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

704 
pred_sym andalso min_arity = max_arity 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

705 
 NONE => false 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

706 

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

707 
val boolify_combconst = 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

708 
CombConst (`make_fixed_const boolify_base, 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

709 
combtyp_from_typ @{typ "bool => bool"}, []) 
42542
024920b65ce2
perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents:
42541
diff
changeset

710 
fun boolify tm = CombApp (boolify_combconst, tm) 
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

711 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

712 
fun repair_pred_syms_in_combterm sym_tab tm = 
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

713 
case strip_combterm_comb tm of 
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

714 
(CombConst ((s, _), _, _), _) => 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

715 
if is_pred_sym sym_tab s then tm else boolify tm 
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

716 
 _ => boolify tm 
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

717 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

718 
fun list_app head args = fold (curry (CombApp o swap)) args head 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

719 

75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

720 
val fun_name = `make_fixed_type_const @{type_name fun} 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

721 

75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

722 
fun explicit_app arg head = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

723 
let 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

724 
val head_ty = combtyp_of head 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

725 
val (arg_ty, res_ty) = dest_combfun head_ty 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

726 
val explicit_app = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

727 
CombConst (`make_fixed_const explicit_app_base, 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

728 
CombType (fun_name, [head_ty, head_ty]), [arg_ty, res_ty]) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

729 
in list_app explicit_app [head, arg] end 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

730 
fun list_explicit_app head args = fold explicit_app args head 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

731 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

732 
fun repair_apps_in_combterm thy type_sys sym_tab = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

733 
let 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

734 
fun aux tm = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

735 
case strip_combterm_comb tm of 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

736 
(head as CombConst ((s, _), _, _), args) => 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

737 
args > map aux 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

738 
> chop (min_arity_of thy type_sys sym_tab s) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

739 
>> list_app head 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

740 
> list_explicit_app 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

741 
 (head, args) => list_explicit_app head (map aux args) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

742 
in aux end 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

743 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

744 
fun repair_combterm thy type_sys sym_tab = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

745 
(case type_sys of Tags _ => I  _ => repair_pred_syms_in_combterm sym_tab) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

746 
#> repair_apps_in_combterm thy type_sys sym_tab 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

747 
#> repair_combterm_consts type_sys 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

748 
val repair_combformula = formula_map ooo repair_combterm 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

749 
val repair_fact = map_combformula ooo repair_combformula 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

750 

75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

751 
fun is_const_relevant type_sys sym_tab s = 
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

752 
not (String.isPrefix bound_var_prefix s) andalso s <> "equal" andalso 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

753 
(type_sys = Many_Typed orelse not (is_pred_sym sym_tab s)) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

754 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

755 
fun consider_combterm_consts type_sys sym_tab tm = 
42533  756 
let val (head, args) = strip_combterm_comb tm in 
757 
(case head of 

758 
CombConst ((s, s'), ty, ty_args) => 

759 
(* FIXME: exploit type subsumption *) 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

760 
is_const_relevant type_sys sym_tab s 
42534
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

761 
? Symtab.insert_list (op =) (s, (s', ty_args, ty)) 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

762 
 _ => I) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

763 
#> fold (consider_combterm_consts type_sys sym_tab) args 
42533  764 
end 
765 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

766 
fun consider_fact_consts type_sys sym_tab 
42534
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

767 
({combformula, ...} : translated_formula) = 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

768 
formula_fold (consider_combterm_consts type_sys sym_tab) combformula 
42533  769 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

770 
fun const_table_for_facts type_sys sym_tab facts = 
42533  771 
Symtab.empty > member (op =) [Many_Typed, Args true, Mangled true] type_sys 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

772 
? fold (consider_fact_consts type_sys sym_tab) facts 
42533  773 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

774 
fun strip_and_map_combtyp 0 f ty = ([], f ty) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

775 
 strip_and_map_combtyp n f (ty as CombType ((s, _), tys)) = 
42533  776 
(case (strip_prefix_and_unascii type_const_prefix s, tys) of 
777 
(SOME @{type_name fun}, [dom_ty, ran_ty]) => 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

778 
strip_and_map_combtyp (n  1) f ran_ty >> cons (f dom_ty) 
42534
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

779 
 _ => ([], f ty)) 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

780 
 strip_and_map_combtyp _ _ _ = raise Fail "unexpected nonfunction" 
42533  781 

42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

782 
fun sym_decl_line_for_const_entry ctxt type_sys sym_tab s (s', ty_args, ty) = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

783 
let 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

784 
val thy = Proof_Context.theory_of ctxt 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

785 
val arity = min_arity_of thy type_sys sym_tab s 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

786 
in 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

787 
if type_sys = Many_Typed then 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

788 
let 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

789 
val (arg_tys, res_ty) = strip_and_map_combtyp arity mangled_combtyp ty 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

790 
val (s, s') = (s, s') > mangled_const_name ty_args 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

791 
in 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

792 
Decl (sym_decl_prefix ^ ascii_of s, (s, s'), arg_tys, 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

793 
if is_pred_sym sym_tab s then `I tff_bool_type else res_ty) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

794 
end 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

795 
else 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

796 
let 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

797 
val (arg_tys, res_ty) = strip_and_map_combtyp arity I ty 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

798 
val bounds = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

799 
map (`I o make_bound_var o string_of_int) (1 upto length arg_tys) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

800 
~~ map SOME arg_tys 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

801 
val bound_tms = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

802 
map (fn (name, ty) => CombConst (name, the ty, [])) bounds 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

803 
in 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

804 
Formula (Fof, sym_decl_prefix ^ ascii_of s, Axiom, 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

805 
CombConst ((s, s'), ty, ty_args) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

806 
> fold (curry (CombApp o swap)) bound_tms 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

807 
> type_pred_combatom type_sys res_ty 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

808 
> mk_aquant AForall bounds 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

809 
> formula_for_combformula ctxt type_sys, 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

810 
NONE, NONE) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

811 
end 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

812 
end 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

813 
fun sym_decl_lines_for_const ctxt type_sys sym_tab (s, xs) = 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

814 
map (sym_decl_line_for_const_entry ctxt type_sys sym_tab s) xs 
42543
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

815 

f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

816 
fun add_tff_types_in_formula (AQuant (_, xs, phi)) = 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

817 
union (op =) (map_filter snd xs) #> add_tff_types_in_formula phi 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

818 
 add_tff_types_in_formula (AConn (_, phis)) = 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

819 
fold add_tff_types_in_formula phis 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

820 
 add_tff_types_in_formula (AAtom _) = I 
42539
f6ba908b8b27
generate typing for "hBOOL" in "Many_Typed" mode + tuning
blanchet
parents:
42538
diff
changeset

821 

42543
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

822 
fun add_tff_types_in_problem_line (Decl (_, _, arg_tys, res_ty)) = 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

823 
union (op =) (res_ty :: arg_tys) 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

824 
 add_tff_types_in_problem_line (Formula (_, _, _, phi, _, _)) = 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

825 
add_tff_types_in_formula phi 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

826 

f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

827 
fun tff_types_in_problem problem = 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

828 
fold (fold add_tff_types_in_problem_line o snd) problem [] 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

829 

f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

830 
fun problem_line_for_tff_type (s, s') = 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

831 
Decl (type_decl_prefix ^ ascii_of s, (s, s'), [], `I tff_type_of_types) 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

832 

f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

833 
val type_declsN = "Types" 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

834 
val sym_declsN = "Symbol types" 
41157  835 
val factsN = "Relevant facts" 
836 
val class_relsN = "Class relationships" 

42543
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

837 
val aritiesN = "Arities" 
41157  838 
val helpersN = "Helper facts" 
839 
val conjsN = "Conjectures" 

41313
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

840 
val free_typesN = "Type variables" 
41157  841 

842 
fun offset_of_heading_in_problem _ [] j = j 

843 
 offset_of_heading_in_problem needle ((heading, lines) :: problem) j = 

844 
if heading = needle then j 

845 
else offset_of_heading_in_problem needle problem (j + length lines) 

846 

42521
02df3b78a438
get rid of "explicit_forall" proverspecific option, even if that means some clutter  foralls will be necessary to attach types to variables
blanchet
parents:
42520
diff
changeset

847 
fun prepare_atp_problem ctxt readable_names type_sys explicit_apply hyp_ts 
02df3b78a438
get rid of "explicit_forall" proverspecific option, even if that means some clutter  foralls will be necessary to attach types to variables
blanchet
parents:
42520
diff
changeset

848 
concl_t facts = 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

849 
let 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

850 
val thy = Proof_Context.theory_of ctxt 
41313
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

851 
val (fact_names, (conjs, facts, class_rel_clauses, arity_clauses)) = 
41134  852 
translate_formulas ctxt type_sys hyp_ts concl_t facts 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

853 
val sym_tab = sym_table_for_facts explicit_apply (conjs @ facts) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

854 
val conjs = map (repair_fact thy type_sys sym_tab) conjs 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

855 
val facts = map (repair_fact thy type_sys sym_tab) facts 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

856 
val sym_tab = sym_table_for_facts explicit_apply (conjs @ facts) 
42522
413b56894f82
close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents:
42521
diff
changeset

857 
(* Reordering these might confuse the proof reconstruction code or the SPASS 
413b56894f82
close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents:
42521
diff
changeset

858 
Flotter hack. *) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

859 
val problem = 
42541
8938507b2054
move type declarations to the front, for TFFcompliance
blanchet
parents:
42540
diff
changeset

860 
[(type_declsN, []), 
42543
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

861 
(sym_declsN, []), 
42541
8938507b2054
move type declarations to the front, for TFFcompliance
blanchet
parents:
42540
diff
changeset

862 
(factsN, map (problem_line_for_fact ctxt fact_prefix type_sys) 
42180
a6c141925a8a
added monomorphization option to Sledgehammer ATPs  this looks promising but is still off by default
blanchet
parents:
41990
diff
changeset

863 
(0 upto length facts  1 ~~ facts)), 
41157  864 
(class_relsN, map problem_line_for_class_rel_clause class_rel_clauses), 
865 
(aritiesN, map problem_line_for_arity_clause arity_clauses), 

866 
(helpersN, []), 

41313
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

867 
(conjsN, map (problem_line_for_conjecture ctxt type_sys) conjs), 
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

868 
(free_typesN, problem_lines_for_free_types type_sys (facts @ conjs))] 
42521
02df3b78a438
get rid of "explicit_forall" proverspecific option, even if that means some clutter  foralls will be necessary to attach types to variables
blanchet
parents:
42520
diff
changeset

869 
val helper_facts = 
42538
9e3e45636459
generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
blanchet
parents:
42534
diff
changeset

870 
problem > maps (map_filter (fn Formula (_, _, _, phi, _, _) => SOME phi 
42528  871 
 _ => NONE) o snd) 
42527
6a9458524f01
reintroduced constructor for formulas, and automatically detect which logic to use (TFF or FOF) to avoid clutter
blanchet
parents:
42526
diff
changeset

872 
> get_helper_facts ctxt type_sys 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

873 
>> map (repair_fact thy type_sys sym_tab) 
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

874 
val const_tab = const_table_for_facts type_sys sym_tab (conjs @ facts) 
42543
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

875 
val sym_decl_lines = 
42544
75cb06eee990
reimplemented the hAPP introduction code so that it's done earlier, when the types are still available
blanchet
parents:
42543
diff
changeset

876 
Symtab.fold_rev (append o sym_decl_lines_for_const ctxt type_sys sym_tab) 
42534
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

877 
const_tab [] 
41157  878 
val helper_lines = 
42521
02df3b78a438
get rid of "explicit_forall" proverspecific option, even if that means some clutter  foralls will be necessary to attach types to variables
blanchet
parents:
42520
diff
changeset

879 
helper_facts 
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

880 
>> map (pair 0 #> problem_line_for_fact ctxt helper_prefix type_sys) 
41157  881 
> op @ 
42543
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

882 
val problem = 
42533  883 
problem > fold (AList.update (op =)) 
42543
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

884 
[(sym_declsN, sym_decl_lines), 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

885 
(helpersN, helper_lines)] 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

886 
val type_decl_lines = 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

887 
if type_sys = Many_Typed then 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

888 
problem > tff_types_in_problem > map problem_line_for_tff_type 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

889 
else 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

890 
[] 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

891 
val (problem, pool) = 
f9d402d144d4
declare TFF types so that SNARK can be used with types
blanchet
parents:
42542
diff
changeset

892 
problem > AList.update (op =) (type_declsN, type_decl_lines) 
41140
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
blanchet
parents:
41138
diff
changeset

893 
> nice_atp_problem readable_names 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

894 
in 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

895 
(problem, 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

896 
case pool of SOME the_pool => snd the_pool  NONE => Symtab.empty, 
42541
8938507b2054
move type declarations to the front, for TFFcompliance
blanchet
parents:
42540
diff
changeset

897 
offset_of_heading_in_problem factsN problem 0, 
41157  898 
offset_of_heading_in_problem conjsN problem 0, 
899 
fact_names > Vector.fromList) 

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

900 
end 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

901 

41313
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

902 
(* FUDGE *) 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

903 
val conj_weight = 0.0 
41770  904 
val hyp_weight = 0.1 
905 
val fact_min_weight = 0.2 

41313
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

906 
val fact_max_weight = 1.0 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

907 

a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

908 
fun add_term_weights weight (ATerm (s, tms)) = 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

909 
(not (is_atp_variable s) andalso s <> "equal") ? Symtab.default (s, weight) 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

910 
#> fold (add_term_weights weight) tms 
42538
9e3e45636459
generate pure TFF problems  ToFoF doesn't like mixtures of FOF and TFF, even when the two logics coincide (e.g. for ground formulas)
blanchet
parents:
42534
diff
changeset

911 
fun add_problem_line_weights weight (Formula (_, _, _, phi, _, _)) = 
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

912 
formula_fold (add_term_weights weight) phi 
42528  913 
 add_problem_line_weights _ _ = I 
41313
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

914 

a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

915 
fun add_conjectures_weights [] = I 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

916 
 add_conjectures_weights conjs = 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

917 
let val (hyps, conj) = split_last conjs in 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

918 
add_problem_line_weights conj_weight conj 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

919 
#> fold (add_problem_line_weights hyp_weight) hyps 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

920 
end 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

921 

a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

922 
fun add_facts_weights facts = 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

923 
let 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

924 
val num_facts = length facts 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

925 
fun weight_of j = 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

926 
fact_min_weight + (fact_max_weight  fact_min_weight) * Real.fromInt j 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

927 
/ Real.fromInt num_facts 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

928 
in 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

929 
map weight_of (0 upto num_facts  1) ~~ facts 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

930 
> fold (uncurry add_problem_line_weights) 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

931 
end 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

932 

a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

933 
(* Weights are from 0.0 (most important) to 1.0 (least important). *) 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

934 
fun atp_problem_weights problem = 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

935 
Symtab.empty 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

936 
> add_conjectures_weights (these (AList.lookup (op =) problem conjsN)) 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

937 
> add_facts_weights (these (AList.lookup (op =) problem factsN)) 
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

938 
> Symtab.dest 
41726  939 
> sort (prod_ord Real.compare string_ord o pairself swap) 
41313
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

940 

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

941 
end; 