src/HOL/Tools/ATP/atp_translate.ML
author blanchet
Tue, 09 Aug 2011 09:05:22 +0200
changeset 44088 3693baa6befb
parent 44003 0a0ee31ec20a
child 44097 3cae91385086
permissions -rw-r--r--
move lambda-lifting code to ATP encoding, so it can be used by Metis
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
43283
446e6621762d updated headers;
wenzelm
parents: 43278
diff changeset
     1
(*  Title:      HOL/Tools/ATP/atp_translate.ML
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
     2
    Author:     Fabian Immler, TU Muenchen
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
     3
    Author:     Makarius
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
     4
    Author:     Jasmin Blanchette, TU Muenchen
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
     5
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
     6
Translation of HOL to FOL for Metis and Sledgehammer.
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
     7
*)
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
     8
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
     9
signature ATP_TRANSLATE =
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
    10
sig
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
    11
  type ('a, 'b) ho_term = ('a, 'b) ATP_Problem.ho_term
43136
cf5cda219058 handle lightweight tags sym theorems gracefully in the presence of TVars with interesting type classes
blanchet
parents: 43130
diff changeset
    12
  type connective = ATP_Problem.connective
cf5cda219058 handle lightweight tags sym theorems gracefully in the presence of TVars with interesting type classes
blanchet
parents: 43130
diff changeset
    13
  type ('a, 'b, 'c) formula = ('a, 'b, 'c) ATP_Problem.formula
42939
0134d6650092 added support for remote Waldmeister
blanchet
parents: 42895
diff changeset
    14
  type format = ATP_Problem.format
42709
e7af132d48fe allow each prover to specify its own formula kind for symbols occurring in the conjecture
blanchet
parents: 42701
diff changeset
    15
  type formula_kind = ATP_Problem.formula_kind
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
    16
  type 'a problem = 'a ATP_Problem.problem
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
    17
43421
926bfe067a32 fixed soundness bug related to extensionality
blanchet
parents: 43401
diff changeset
    18
  datatype locality =
926bfe067a32 fixed soundness bug related to extensionality
blanchet
parents: 43401
diff changeset
    19
    General | Helper | Extensionality | Intro | Elim | Simp | Local | Assum |
926bfe067a32 fixed soundness bug related to extensionality
blanchet
parents: 43401
diff changeset
    20
    Chained
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
    21
43624
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
    22
  datatype order = First_Order | Higher_Order
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
    23
  datatype polymorphism = Polymorphic | Monomorphic | Mangled_Monomorphic
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
    24
  datatype type_level =
43362
8d3a5b7b9a00 name tuning
blanchet
parents: 43361
diff changeset
    25
    All_Types | Noninf_Nonmono_Types | Fin_Nonmono_Types | Const_Arg_Types |
8d3a5b7b9a00 name tuning
blanchet
parents: 43361
diff changeset
    26
    No_Types
43128
a19826080596 tuned names
blanchet
parents: 43125
diff changeset
    27
  datatype type_heaviness = Heavyweight | Lightweight
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
    28
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
    29
  datatype type_enc =
43624
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
    30
    Simple_Types of order * type_level |
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
    31
    Guards of polymorphism * type_level * type_heaviness |
42837
358769224d94 renamed thin to light, fat to heavy
blanchet
parents: 42836
diff changeset
    32
    Tags of polymorphism * type_level * type_heaviness
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
    33
44088
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
    34
  val no_lambdasN : string
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
    35
  val concealedN : string
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
    36
  val liftingN : string
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
    37
  val combinatorsN : string
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
    38
  val hybridN : string
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
    39
  val lambdasN : string
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
    40
  val smartN : string
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
    41
  val bound_var_prefix : string
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
    42
  val schematic_var_prefix : string
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
    43
  val fixed_var_prefix : string
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
    44
  val tvar_prefix : string
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
    45
  val tfree_prefix : string
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
    46
  val const_prefix : string
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
    47
  val type_const_prefix : string
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
    48
  val class_prefix : string
43936
127749bbc639 use a more robust naming convention for "polymorphic" frees -- the check is an overapproximation but that's fine as far as soundness is concerned
blanchet
parents: 43907
diff changeset
    49
  val polymorphic_free_prefix : string
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
    50
  val skolem_const_prefix : string
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
    51
  val old_skolem_const_prefix : string
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
    52
  val new_skolem_const_prefix : string
43125
ddf63baabdec distinguish different kinds of typing informations in the fact name
blanchet
parents: 43121
diff changeset
    53
  val type_decl_prefix : string
ddf63baabdec distinguish different kinds of typing informations in the fact name
blanchet
parents: 43121
diff changeset
    54
  val sym_decl_prefix : string
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
    55
  val guards_sym_formula_prefix : string
43129
4301f1c123d6 support lightweight tags in new Metis
blanchet
parents: 43128
diff changeset
    56
  val lightweight_tags_sym_formula_prefix : string
40204
da97d75e20e6 standardize on "fact" terminology (vs. "axiom" or "theorem") in Sledgehammer -- but keep "Axiom" in the lower-level "ATP_Problem" module
blanchet
parents: 40145
diff changeset
    57
  val fact_prefix : string
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
    58
  val conjecture_prefix : string
42881
dbdfe2d5b6ab automatically use "metisFT" when typed helpers are necessary
blanchet
parents: 42879
diff changeset
    59
  val helper_prefix : string
43125
ddf63baabdec distinguish different kinds of typing informations in the fact name
blanchet
parents: 43121
diff changeset
    60
  val class_rel_clause_prefix : string
ddf63baabdec distinguish different kinds of typing informations in the fact name
blanchet
parents: 43121
diff changeset
    61
  val arity_clause_prefix : string
ddf63baabdec distinguish different kinds of typing informations in the fact name
blanchet
parents: 43121
diff changeset
    62
  val tfree_clause_prefix : string
42881
dbdfe2d5b6ab automatically use "metisFT" when typed helpers are necessary
blanchet
parents: 42879
diff changeset
    63
  val typed_helper_suffix : string
43125
ddf63baabdec distinguish different kinds of typing informations in the fact name
blanchet
parents: 43121
diff changeset
    64
  val untyped_helper_suffix : string
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
    65
  val type_tag_idempotence_helper_name : string
42966
4e2d6c1e5392 more work on parsing LEO-II proofs without lambdas
blanchet
parents: 42963
diff changeset
    66
  val predicator_name : string
4e2d6c1e5392 more work on parsing LEO-II proofs without lambdas
blanchet
parents: 42963
diff changeset
    67
  val app_op_name : string
43104
81d1b15aa0ae use ":" for type information (looks good in Metis's output) and handle it in new path finder
blanchet
parents: 43102
diff changeset
    68
  val type_tag_name : string
42966
4e2d6c1e5392 more work on parsing LEO-II proofs without lambdas
blanchet
parents: 42963
diff changeset
    69
  val type_pred_name : string
42962
3b50fdeb6cfc started adding support for THF output (but no lambdas)
blanchet
parents: 42956
diff changeset
    70
  val simple_type_prefix : string
43174
f497a1e97d37 skip "hBOOL" in new Metis path finder
blanchet
parents: 43167
diff changeset
    71
  val prefixed_predicator_name : string
43130
d73fc2e55308 implemented missing hAPP and ti cases of new path finder
blanchet
parents: 43129
diff changeset
    72
  val prefixed_app_op_name : string
d73fc2e55308 implemented missing hAPP and ti cases of new path finder
blanchet
parents: 43129
diff changeset
    73
  val prefixed_type_tag_name : string
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
    74
  val ascii_of : string -> string
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
    75
  val unascii_of : string -> string
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
    76
  val strip_prefix_and_unascii : string -> string -> string option
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
    77
  val proxy_table : (string * (string * (thm * (string * string)))) list
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
    78
  val proxify_const : string -> (string * string) option
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
    79
  val invert_const : string -> string
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
    80
  val unproxify_const : string -> string
43093
blanchet
parents: 43092
diff changeset
    81
  val new_skolem_var_name_from_const : string -> string
43248
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
    82
  val atp_irrelevant_consts : string list
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
    83
  val atp_schematic_consts_of : term -> typ list Symtab.table
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
    84
  val is_locality_global : locality -> bool
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
    85
  val type_enc_from_string : string -> type_enc
43828
e07a2c4cbad8 move lambda translation option from ATP to Sledgehammer, to avoid accidentally breaking Metis (its reconstruction code can only deal with combinators)
blanchet
parents: 43827
diff changeset
    86
  val is_type_enc_higher_order : type_enc -> bool
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
    87
  val polymorphism_of_type_enc : type_enc -> polymorphism
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
    88
  val level_of_type_enc : type_enc -> type_level
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
    89
  val is_type_enc_virtually_sound : type_enc -> bool
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
    90
  val is_type_enc_fairly_sound : type_enc -> bool
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
    91
  val choose_format : format list -> type_enc -> format * type_enc
43136
cf5cda219058 handle lightweight tags sym theorems gracefully in the presence of TVars with interesting type classes
blanchet
parents: 43130
diff changeset
    92
  val mk_aconns :
cf5cda219058 handle lightweight tags sym theorems gracefully in the presence of TVars with interesting type classes
blanchet
parents: 43130
diff changeset
    93
    connective -> ('a, 'b, 'c) formula list -> ('a, 'b, 'c) formula
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
    94
  val unmangled_const : string -> string * (string, 'b) ho_term list
43130
d73fc2e55308 implemented missing hAPP and ti cases of new path finder
blanchet
parents: 43129
diff changeset
    95
  val unmangled_const_name : string -> string
43194
ef3ff8856245 fixed type helper indices in new Metis
blanchet
parents: 43193
diff changeset
    96
  val helper_table : ((string * bool) * thm list) list
43501
0e422a84d0b2 don't change the way helpers are generated for the exporter's sake
blanchet
parents: 43496
diff changeset
    97
  val factsN : string
40059
6ad9081665db use consistent terminology in Sledgehammer: "prover = ATP or SMT solver or ..."
blanchet
parents: 39975
diff changeset
    98
  val prepare_atp_problem :
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
    99
    Proof.context -> format -> formula_kind -> formula_kind -> type_enc -> bool
44088
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   100
    -> bool -> string -> bool -> bool -> term list -> term
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   101
    -> ((string * locality) * term) list
42541
8938507b2054 move type declarations to the front, for TFF-compliance
blanchet
parents: 42540
diff changeset
   102
    -> string problem * string Symtab.table * int * int
43214
4e850b2c1f5c removed old optimization that isn't one anyone
blanchet
parents: 43213
diff changeset
   103
       * (string * locality) list vector * int list * int Symtab.table
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
   104
  val atp_problem_weights : string problem -> (string * real) list
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   105
end;
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   106
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   107
structure ATP_Translate : ATP_TRANSLATE =
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   108
struct
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   109
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   110
open ATP_Util
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   111
open ATP_Problem
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   112
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   113
type name = string * string
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   114
44088
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   115
val no_lambdasN = "no_lambdas"
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   116
val concealedN = "concealed"
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   117
val liftingN = "lifting"
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   118
val combinatorsN = "combinators"
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   119
val hybridN = "hybrid"
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   120
val lambdasN = "lambdas"
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   121
val smartN = "smart"
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   122
43828
e07a2c4cbad8 move lambda translation option from ATP to Sledgehammer, to avoid accidentally breaking Metis (its reconstruction code can only deal with combinators)
blanchet
parents: 43827
diff changeset
   123
val generate_info = false (* experimental *)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   124
43693
b46f5d2d42cc make SML/NJ happier
blanchet
parents: 43692
diff changeset
   125
fun isabelle_info s =
b46f5d2d42cc make SML/NJ happier
blanchet
parents: 43692
diff changeset
   126
  if generate_info then SOME (ATerm ("[]", [ATerm ("isabelle_" ^ s, [])]))
b46f5d2d42cc make SML/NJ happier
blanchet
parents: 43692
diff changeset
   127
  else NONE
42879
3b9669b11d33 generate useful information for type axioms
blanchet
parents: 42878
diff changeset
   128
43693
b46f5d2d42cc make SML/NJ happier
blanchet
parents: 43692
diff changeset
   129
val introN = "intro"
b46f5d2d42cc make SML/NJ happier
blanchet
parents: 43692
diff changeset
   130
val elimN = "elim"
b46f5d2d42cc make SML/NJ happier
blanchet
parents: 43692
diff changeset
   131
val simpN = "simp"
42879
3b9669b11d33 generate useful information for type axioms
blanchet
parents: 42878
diff changeset
   132
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   133
val bound_var_prefix = "B_"
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   134
val schematic_var_prefix = "V_"
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   135
val fixed_var_prefix = "v_"
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   136
val tvar_prefix = "T_"
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   137
val tfree_prefix = "t_"
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   138
val const_prefix = "c_"
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   139
val type_const_prefix = "tc_"
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   140
val class_prefix = "cl_"
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   141
43936
127749bbc639 use a more robust naming convention for "polymorphic" frees -- the check is an overapproximation but that's fine as far as soundness is concerned
blanchet
parents: 43907
diff changeset
   142
val polymorphic_free_prefix = "poly_free"
43907
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
   143
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   144
val skolem_const_prefix = "ATP" ^ Long_Name.separator ^ "Sko"
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   145
val old_skolem_const_prefix = skolem_const_prefix ^ "o"
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   146
val new_skolem_const_prefix = skolem_const_prefix ^ "n"
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   147
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
   148
val type_decl_prefix = "ty_"
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
   149
val sym_decl_prefix = "sy_"
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
   150
val guards_sym_formula_prefix = "gsy_"
43129
4301f1c123d6 support lightweight tags in new Metis
blanchet
parents: 43128
diff changeset
   151
val lightweight_tags_sym_formula_prefix = "tsy_"
40204
da97d75e20e6 standardize on "fact" terminology (vs. "axiom" or "theorem") in Sledgehammer -- but keep "Axiom" in the lower-level "ATP_Problem" module
blanchet
parents: 40145
diff changeset
   152
val fact_prefix = "fact_"
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   153
val conjecture_prefix = "conj_"
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   154
val helper_prefix = "help_"
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   155
val class_rel_clause_prefix = "clar_"
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   156
val arity_clause_prefix = "arity_"
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   157
val tfree_clause_prefix = "tfree_"
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   158
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   159
val lambda_fact_prefix = "ATP.lambda_"
42881
dbdfe2d5b6ab automatically use "metisFT" when typed helpers are necessary
blanchet
parents: 42879
diff changeset
   160
val typed_helper_suffix = "_T"
dbdfe2d5b6ab automatically use "metisFT" when typed helpers are necessary
blanchet
parents: 42879
diff changeset
   161
val untyped_helper_suffix = "_U"
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   162
val type_tag_idempotence_helper_name = helper_prefix ^ "ti_idem"
42881
dbdfe2d5b6ab automatically use "metisFT" when typed helpers are necessary
blanchet
parents: 42879
diff changeset
   163
42966
4e2d6c1e5392 more work on parsing LEO-II proofs without lambdas
blanchet
parents: 42963
diff changeset
   164
val predicator_name = "hBOOL"
4e2d6c1e5392 more work on parsing LEO-II proofs without lambdas
blanchet
parents: 42963
diff changeset
   165
val app_op_name = "hAPP"
43104
81d1b15aa0ae use ":" for type information (looks good in Metis's output) and handle it in new path finder
blanchet
parents: 43102
diff changeset
   166
val type_tag_name = "ti"
42966
4e2d6c1e5392 more work on parsing LEO-II proofs without lambdas
blanchet
parents: 42963
diff changeset
   167
val type_pred_name = "is"
42962
3b50fdeb6cfc started adding support for THF output (but no lambdas)
blanchet
parents: 42956
diff changeset
   168
val simple_type_prefix = "ty_"
42531
a462dbaa584f added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents: 42530
diff changeset
   169
43174
f497a1e97d37 skip "hBOOL" in new Metis path finder
blanchet
parents: 43167
diff changeset
   170
val prefixed_predicator_name = const_prefix ^ predicator_name
43130
d73fc2e55308 implemented missing hAPP and ti cases of new path finder
blanchet
parents: 43129
diff changeset
   171
val prefixed_app_op_name = const_prefix ^ app_op_name
d73fc2e55308 implemented missing hAPP and ti cases of new path finder
blanchet
parents: 43129
diff changeset
   172
val prefixed_type_tag_name = const_prefix ^ type_tag_name
d73fc2e55308 implemented missing hAPP and ti cases of new path finder
blanchet
parents: 43129
diff changeset
   173
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   174
(* Freshness almost guaranteed! *)
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   175
val atp_weak_prefix = "ATP:"
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   176
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   177
(*Escaping of special characters.
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   178
  Alphanumeric characters are left unchanged.
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   179
  The character _ goes to __
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   180
  Characters in the range ASCII space to / go to _A to _P, respectively.
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   181
  Other characters go to _nnn where nnn is the decimal ASCII code.*)
43093
blanchet
parents: 43092
diff changeset
   182
val upper_a_minus_space = Char.ord #"A" - Char.ord #" "
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   183
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   184
fun stringN_of_int 0 _ = ""
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   185
  | stringN_of_int k n =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   186
    stringN_of_int (k - 1) (n div 10) ^ string_of_int (n mod 10)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   187
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   188
fun ascii_of_char c =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   189
  if Char.isAlphaNum c then
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   190
    String.str c
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   191
  else if c = #"_" then
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   192
    "__"
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   193
  else if #" " <= c andalso c <= #"/" then
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   194
    "_" ^ String.str (Char.chr (Char.ord c + upper_a_minus_space))
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   195
  else
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   196
    (* fixed width, in case more digits follow *)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   197
    "_" ^ stringN_of_int 3 (Char.ord c)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   198
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   199
val ascii_of = String.translate ascii_of_char
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   200
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   201
(** Remove ASCII armoring from names in proof files **)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   202
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   203
(* We don't raise error exceptions because this code can run inside a worker
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   204
   thread. Also, the errors are impossible. *)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   205
val unascii_of =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   206
  let
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   207
    fun un rcs [] = String.implode(rev rcs)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   208
      | un rcs [#"_"] = un (#"_" :: rcs) [] (* ERROR *)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   209
        (* Three types of _ escapes: __, _A to _P, _nnn *)
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   210
      | un rcs (#"_" :: #"_" :: cs) = un (#"_" :: rcs) cs
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   211
      | un rcs (#"_" :: c :: cs) =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   212
        if #"A" <= c andalso c<= #"P" then
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   213
          (* translation of #" " to #"/" *)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   214
          un (Char.chr (Char.ord c - upper_a_minus_space) :: rcs) cs
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   215
        else
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   216
          let val digits = List.take (c :: cs, 3) handle General.Subscript => [] in
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   217
            case Int.fromString (String.implode digits) of
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   218
              SOME n => un (Char.chr n :: rcs) (List.drop (cs, 2))
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   219
            | NONE => un (c :: #"_" :: rcs) cs (* ERROR *)
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   220
          end
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   221
      | un rcs (c :: cs) = un (c :: rcs) cs
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   222
  in un [] o String.explode end
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   223
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   224
(* If string s has the prefix s1, return the result of deleting it,
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   225
   un-ASCII'd. *)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   226
fun strip_prefix_and_unascii s1 s =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   227
  if String.isPrefix s1 s then
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   228
    SOME (unascii_of (String.extract (s, size s1, NONE)))
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   229
  else
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   230
    NONE
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   231
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   232
val proxy_table =
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   233
  [("c_False", (@{const_name False}, (@{thm fFalse_def},
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   234
       ("fFalse", @{const_name ATP.fFalse})))),
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   235
   ("c_True", (@{const_name True}, (@{thm fTrue_def},
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   236
       ("fTrue", @{const_name ATP.fTrue})))),
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   237
   ("c_Not", (@{const_name Not}, (@{thm fNot_def},
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   238
       ("fNot", @{const_name ATP.fNot})))),
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   239
   ("c_conj", (@{const_name conj}, (@{thm fconj_def},
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   240
       ("fconj", @{const_name ATP.fconj})))),
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   241
   ("c_disj", (@{const_name disj}, (@{thm fdisj_def},
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   242
       ("fdisj", @{const_name ATP.fdisj})))),
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   243
   ("c_implies", (@{const_name implies}, (@{thm fimplies_def},
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   244
       ("fimplies", @{const_name ATP.fimplies})))),
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   245
   ("equal", (@{const_name HOL.eq}, (@{thm fequal_def},
43678
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   246
       ("fequal", @{const_name ATP.fequal})))),
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   247
   ("c_All", (@{const_name All}, (@{thm fAll_def},
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   248
       ("fAll", @{const_name ATP.fAll})))),
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   249
   ("c_Ex", (@{const_name Ex}, (@{thm fEx_def},
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   250
       ("fEx", @{const_name ATP.fEx}))))]
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   251
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   252
val proxify_const = AList.lookup (op =) proxy_table #> Option.map (snd o snd)
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   253
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   254
(* Readable names for the more common symbolic functions. Do not mess with the
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   255
   table unless you know what you are doing. *)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   256
val const_trans_table =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   257
  [(@{type_name Product_Type.prod}, "prod"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   258
   (@{type_name Sum_Type.sum}, "sum"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   259
   (@{const_name False}, "False"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   260
   (@{const_name True}, "True"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   261
   (@{const_name Not}, "Not"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   262
   (@{const_name conj}, "conj"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   263
   (@{const_name disj}, "disj"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   264
   (@{const_name implies}, "implies"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   265
   (@{const_name HOL.eq}, "equal"),
43678
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   266
   (@{const_name All}, "All"),
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   267
   (@{const_name Ex}, "Ex"),
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   268
   (@{const_name If}, "If"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   269
   (@{const_name Set.member}, "member"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   270
   (@{const_name Meson.COMBI}, "COMBI"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   271
   (@{const_name Meson.COMBK}, "COMBK"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   272
   (@{const_name Meson.COMBB}, "COMBB"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   273
   (@{const_name Meson.COMBC}, "COMBC"),
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   274
   (@{const_name Meson.COMBS}, "COMBS")]
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   275
  |> Symtab.make
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   276
  |> fold (Symtab.update o swap o snd o snd o snd) proxy_table
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   277
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   278
(* Invert the table of translations between Isabelle and ATPs. *)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   279
val const_trans_table_inv =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   280
  const_trans_table |> Symtab.dest |> map swap |> Symtab.make
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   281
val const_trans_table_unprox =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   282
  Symtab.empty
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   283
  |> fold (fn (_, (isa, (_, (_, atp)))) => Symtab.update (atp, isa)) proxy_table
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   284
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   285
val invert_const = perhaps (Symtab.lookup const_trans_table_inv)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   286
val unproxify_const = perhaps (Symtab.lookup const_trans_table_unprox)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   287
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   288
fun lookup_const c =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   289
  case Symtab.lookup const_trans_table c of
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   290
    SOME c' => c'
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   291
  | NONE => ascii_of c
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   292
43622
blanchet
parents: 43572
diff changeset
   293
fun ascii_of_indexname (v, 0) = ascii_of v
blanchet
parents: 43572
diff changeset
   294
  | ascii_of_indexname (v, i) = ascii_of v ^ "_" ^ string_of_int i
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   295
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   296
fun make_bound_var x = bound_var_prefix ^ ascii_of x
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   297
fun make_schematic_var v = schematic_var_prefix ^ ascii_of_indexname v
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   298
fun make_fixed_var x = fixed_var_prefix ^ ascii_of x
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   299
43622
blanchet
parents: 43572
diff changeset
   300
fun make_schematic_type_var (x, i) =
blanchet
parents: 43572
diff changeset
   301
      tvar_prefix ^ (ascii_of_indexname (unprefix "'" x, i))
blanchet
parents: 43572
diff changeset
   302
fun make_fixed_type_var x = tfree_prefix ^ (ascii_of (unprefix "'" x))
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   303
43622
blanchet
parents: 43572
diff changeset
   304
(* "HOL.eq" is mapped to the ATP's equality. *)
blanchet
parents: 43572
diff changeset
   305
fun make_fixed_const @{const_name HOL.eq} = tptp_old_equal
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   306
  | make_fixed_const c = const_prefix ^ lookup_const c
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   307
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   308
fun make_fixed_type_const c = type_const_prefix ^ lookup_const c
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   309
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   310
fun make_type_class clas = class_prefix ^ ascii_of clas
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   311
43093
blanchet
parents: 43092
diff changeset
   312
fun new_skolem_var_name_from_const s =
blanchet
parents: 43092
diff changeset
   313
  let val ss = s |> space_explode Long_Name.separator in
blanchet
parents: 43092
diff changeset
   314
    nth ss (length ss - 2)
blanchet
parents: 43092
diff changeset
   315
  end
blanchet
parents: 43092
diff changeset
   316
43248
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   317
(* These are either simplified away by "Meson.presimplify" (most of the time) or
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   318
   handled specially via "fFalse", "fTrue", ..., "fequal". *)
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   319
val atp_irrelevant_consts =
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   320
  [@{const_name False}, @{const_name True}, @{const_name Not},
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   321
   @{const_name conj}, @{const_name disj}, @{const_name implies},
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   322
   @{const_name HOL.eq}, @{const_name If}, @{const_name Let}]
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   323
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   324
val atp_monomorph_bad_consts =
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   325
  atp_irrelevant_consts @
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   326
  (* These are ignored anyway by the relevance filter (unless they appear in
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   327
     higher-order places) but not by the monomorphizer. *)
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   328
  [@{const_name all}, @{const_name "==>"}, @{const_name "=="},
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   329
   @{const_name Trueprop}, @{const_name All}, @{const_name Ex},
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   330
   @{const_name Ex1}, @{const_name Ball}, @{const_name Bex}]
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   331
43258
956895f99904 slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents: 43248
diff changeset
   332
fun add_schematic_const (x as (_, T)) =
956895f99904 slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents: 43248
diff changeset
   333
  Monomorph.typ_has_tvars T ? Symtab.insert_list (op =) x
956895f99904 slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents: 43248
diff changeset
   334
val add_schematic_consts_of =
956895f99904 slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents: 43248
diff changeset
   335
  Term.fold_aterms (fn Const (x as (s, _)) =>
956895f99904 slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents: 43248
diff changeset
   336
                       not (member (op =) atp_monomorph_bad_consts s)
956895f99904 slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents: 43248
diff changeset
   337
                       ? add_schematic_const x
956895f99904 slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents: 43248
diff changeset
   338
                      | _ => I)
956895f99904 slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents: 43248
diff changeset
   339
fun atp_schematic_consts_of t = add_schematic_consts_of t Symtab.empty
43248
69375eaa9016 more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents: 43222
diff changeset
   340
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   341
(** Definitions and functions for FOL clauses and formulas for TPTP **)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   342
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   343
(* The first component is the type class; the second is a "TVar" or "TFree". *)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   344
datatype type_literal =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   345
  TyLitVar of name * name |
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   346
  TyLitFree of name * name
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   347
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   348
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   349
(** Isabelle arities **)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   350
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   351
datatype arity_literal =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   352
  TConsLit of name * name * name list |
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   353
  TVarLit of name * name
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   354
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   355
fun gen_TVars 0 = []
43093
blanchet
parents: 43092
diff changeset
   356
  | gen_TVars n = ("T_" ^ string_of_int n) :: gen_TVars (n-1)
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   357
43263
blanchet
parents: 43259
diff changeset
   358
val type_class = the_single @{sort type}
blanchet
parents: 43259
diff changeset
   359
blanchet
parents: 43259
diff changeset
   360
fun add_packed_sort tvar =
blanchet
parents: 43259
diff changeset
   361
  fold (fn s => s <> type_class ? cons (`make_type_class s, `I tvar))
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   362
43086
blanchet
parents: 43085
diff changeset
   363
type arity_clause =
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   364
  {name : string,
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   365
   prem_lits : arity_literal list,
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   366
   concl_lits : arity_literal}
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   367
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   368
(* Arity of type constructor "tcon :: (arg1, ..., argN) res" *)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   369
fun make_axiom_arity_clause (tcons, name, (cls, args)) =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   370
  let
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   371
    val tvars = gen_TVars (length args)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   372
    val tvars_srts = ListPair.zip (tvars, args)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   373
  in
43086
blanchet
parents: 43085
diff changeset
   374
    {name = name,
43263
blanchet
parents: 43259
diff changeset
   375
     prem_lits = [] |> fold (uncurry add_packed_sort) tvars_srts |> map TVarLit,
43086
blanchet
parents: 43085
diff changeset
   376
     concl_lits = TConsLit (`make_type_class cls,
blanchet
parents: 43085
diff changeset
   377
                            `make_fixed_type_const tcons,
blanchet
parents: 43085
diff changeset
   378
                            tvars ~~ tvars)}
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   379
  end
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   380
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   381
fun arity_clause _ _ (_, []) = []
43495
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   382
  | arity_clause seen n (tcons, ("HOL.type", _) :: ars) =  (* ignore *)
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   383
    arity_clause seen n (tcons, ars)
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   384
  | arity_clause seen n (tcons, (ar as (class, _)) :: ars) =
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   385
    if member (op =) seen class then
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   386
      (* multiple arities for the same (tycon, class) pair *)
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   387
      make_axiom_arity_clause (tcons,
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   388
          lookup_const tcons ^ "___" ^ ascii_of class ^ "_" ^ string_of_int n,
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   389
          ar) ::
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   390
      arity_clause seen (n + 1) (tcons, ars)
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   391
    else
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   392
      make_axiom_arity_clause (tcons, lookup_const tcons ^ "___" ^
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   393
                               ascii_of class, ar) ::
75d2e48c5d30 avoid double ASCII-fication
blanchet
parents: 43493
diff changeset
   394
      arity_clause (class :: seen) n (tcons, ars)
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   395
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   396
fun multi_arity_clause [] = []
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   397
  | multi_arity_clause ((tcons, ars) :: tc_arlists) =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   398
      arity_clause [] 1 (tcons, ars) @ multi_arity_clause tc_arlists
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   399
43622
blanchet
parents: 43572
diff changeset
   400
(* Generate all pairs (tycon, class, sorts) such that tycon belongs to class in
blanchet
parents: 43572
diff changeset
   401
   theory thy provided its arguments have the corresponding sorts. *)
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   402
fun type_class_pairs thy tycons classes =
43093
blanchet
parents: 43092
diff changeset
   403
  let
blanchet
parents: 43092
diff changeset
   404
    val alg = Sign.classes_of thy
blanchet
parents: 43092
diff changeset
   405
    fun domain_sorts tycon = Sorts.mg_domain alg tycon o single
blanchet
parents: 43092
diff changeset
   406
    fun add_class tycon class =
blanchet
parents: 43092
diff changeset
   407
      cons (class, domain_sorts tycon class)
blanchet
parents: 43092
diff changeset
   408
      handle Sorts.CLASS_ERROR _ => I
blanchet
parents: 43092
diff changeset
   409
    fun try_classes tycon = (tycon, fold (add_class tycon) classes [])
blanchet
parents: 43092
diff changeset
   410
  in map try_classes tycons end
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   411
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   412
(*Proving one (tycon, class) membership may require proving others, so iterate.*)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   413
fun iter_type_class_pairs _ _ [] = ([], [])
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   414
  | iter_type_class_pairs thy tycons classes =
43263
blanchet
parents: 43259
diff changeset
   415
      let
blanchet
parents: 43259
diff changeset
   416
        fun maybe_insert_class s =
blanchet
parents: 43259
diff changeset
   417
          (s <> type_class andalso not (member (op =) classes s))
blanchet
parents: 43259
diff changeset
   418
          ? insert (op =) s
blanchet
parents: 43259
diff changeset
   419
        val cpairs = type_class_pairs thy tycons classes
blanchet
parents: 43259
diff changeset
   420
        val newclasses =
blanchet
parents: 43259
diff changeset
   421
          [] |> fold (fold (fold (fold maybe_insert_class) o snd) o snd) cpairs
blanchet
parents: 43259
diff changeset
   422
        val (classes', cpairs') = iter_type_class_pairs thy tycons newclasses
43266
3baf384e2b99 minor optimization
blanchet
parents: 43265
diff changeset
   423
      in (classes' @ classes, union (op =) cpairs' cpairs) end
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   424
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   425
fun make_arity_clauses thy tycons =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   426
  iter_type_class_pairs thy tycons ##> multi_arity_clause
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   427
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   428
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   429
(** Isabelle class relations **)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   430
43086
blanchet
parents: 43085
diff changeset
   431
type class_rel_clause =
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   432
  {name : string,
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   433
   subclass : name,
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   434
   superclass : name}
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   435
43622
blanchet
parents: 43572
diff changeset
   436
(* Generate all pairs (sub, super) such that sub is a proper subclass of super
blanchet
parents: 43572
diff changeset
   437
   in theory "thy". *)
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   438
fun class_pairs _ [] _ = []
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   439
  | class_pairs thy subs supers =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   440
      let
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   441
        val class_less = Sorts.class_less (Sign.classes_of thy)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   442
        fun add_super sub super = class_less (sub, super) ? cons (sub, super)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   443
        fun add_supers sub = fold (add_super sub) supers
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   444
      in fold add_supers subs [] end
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   445
43622
blanchet
parents: 43572
diff changeset
   446
fun make_class_rel_clause (sub, super) =
blanchet
parents: 43572
diff changeset
   447
  {name = sub ^ "_" ^ super, subclass = `make_type_class sub,
43086
blanchet
parents: 43085
diff changeset
   448
   superclass = `make_type_class super}
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   449
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   450
fun make_class_rel_clauses thy subs supers =
43093
blanchet
parents: 43092
diff changeset
   451
  map make_class_rel_clause (class_pairs thy subs supers)
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   452
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   453
(* intermediate terms *)
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   454
datatype iterm =
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   455
  IConst of name * typ * typ list |
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   456
  IVar of name * typ |
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   457
  IApp of iterm * iterm |
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   458
  IAbs of (name * typ) * iterm
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   459
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   460
fun ityp_of (IConst (_, T, _)) = T
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   461
  | ityp_of (IVar (_, T)) = T
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   462
  | ityp_of (IApp (t1, _)) = snd (dest_funT (ityp_of t1))
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   463
  | ityp_of (IAbs ((_, T), tm)) = T --> ityp_of tm
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   464
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   465
(*gets the head of a combinator application, along with the list of arguments*)
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   466
fun strip_iterm_comb u =
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   467
  let
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   468
    fun stripc (IApp (t, u), ts) = stripc (t, u :: ts)
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   469
      | stripc x = x
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   470
  in stripc (u, []) end
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   471
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   472
fun atyps_of T = fold_atyps (insert (op =)) T []
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   473
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   474
fun new_skolem_const_name s num_T_args =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   475
  [new_skolem_const_prefix, s, string_of_int num_T_args]
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   476
  |> space_implode Long_Name.separator
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   477
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   478
(* Converts an Isabelle/HOL term (with combinators) into an intermediate term.
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   479
   Also accumulates sort infomation. *)
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   480
fun iterm_from_term thy bs (P $ Q) =
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   481
    let
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   482
      val (P', P_atomics_Ts) = iterm_from_term thy bs P
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   483
      val (Q', Q_atomics_Ts) = iterm_from_term thy bs Q
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   484
    in (IApp (P', Q'), union (op =) P_atomics_Ts Q_atomics_Ts) end
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   485
  | iterm_from_term thy _ (Const (c, T)) =
43907
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
   486
    (IConst (`make_fixed_const c, T,
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
   487
             if String.isPrefix old_skolem_const_prefix c then
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
   488
               [] |> Term.add_tvarsT T |> map TVar
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
   489
             else
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
   490
               (c, T) |> Sign.const_typargs thy),
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
   491
     atyps_of T)
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
   492
  | iterm_from_term _ _ (Free (s, T)) =
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
   493
    (IConst (`make_fixed_var s, T,
43936
127749bbc639 use a more robust naming convention for "polymorphic" frees -- the check is an overapproximation but that's fine as far as soundness is concerned
blanchet
parents: 43907
diff changeset
   494
             if String.isPrefix polymorphic_free_prefix s then [T] else []),
43907
073ab5379842 pass type arguments to lambda-lifted Frees, to account for polymorphism
blanchet
parents: 43906
diff changeset
   495
     atyps_of T)
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   496
  | iterm_from_term _ _ (Var (v as (s, _), T)) =
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   497
    (if String.isPrefix Meson_Clausify.new_skolem_var_prefix s then
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   498
       let
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   499
         val Ts = T |> strip_type |> swap |> op ::
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   500
         val s' = new_skolem_const_name s (length Ts)
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   501
       in IConst (`make_fixed_const s', T, Ts) end
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   502
     else
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   503
       IVar ((make_schematic_var v, s), T), atyps_of T)
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   504
  | iterm_from_term _ bs (Bound j) =
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   505
    nth bs j |> (fn (s, T) => (IConst (`make_bound_var s, T, []), atyps_of T))
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   506
  | iterm_from_term thy bs (Abs (s, T, t)) =
43678
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   507
    let
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   508
      fun vary s = s |> AList.defined (op =) bs s ? vary o Symbol.bump_string
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   509
      val s = vary s
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   510
      val (tm, atomic_Ts) = iterm_from_term thy ((s, T) :: bs) t
43678
56d352659500 improved translation of lambdas in THF
nik
parents: 43677
diff changeset
   511
    in
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   512
      (IAbs ((`make_bound_var s, T), tm),
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
   513
       union (op =) atomic_Ts (atyps_of T))
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
   514
    end
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   515
43421
926bfe067a32 fixed soundness bug related to extensionality
blanchet
parents: 43401
diff changeset
   516
datatype locality =
926bfe067a32 fixed soundness bug related to extensionality
blanchet
parents: 43401
diff changeset
   517
  General | Helper | Extensionality | Intro | Elim | Simp | Local | Assum |
926bfe067a32 fixed soundness bug related to extensionality
blanchet
parents: 43401
diff changeset
   518
  Chained
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   519
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   520
(* (quasi-)underapproximation of the truth *)
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   521
fun is_locality_global Local = false
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   522
  | is_locality_global Assum = false
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   523
  | is_locality_global Chained = false
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   524
  | is_locality_global _ = true
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   525
43624
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   526
datatype order = First_Order | Higher_Order
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   527
datatype polymorphism = Polymorphic | Monomorphic | Mangled_Monomorphic
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   528
datatype type_level =
43362
8d3a5b7b9a00 name tuning
blanchet
parents: 43361
diff changeset
   529
  All_Types | Noninf_Nonmono_Types | Fin_Nonmono_Types | Const_Arg_Types |
8d3a5b7b9a00 name tuning
blanchet
parents: 43361
diff changeset
   530
  No_Types
43128
a19826080596 tuned names
blanchet
parents: 43125
diff changeset
   531
datatype type_heaviness = Heavyweight | Lightweight
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   532
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   533
datatype type_enc =
43624
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   534
  Simple_Types of order * type_level |
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
   535
  Guards of polymorphism * type_level * type_heaviness |
42837
358769224d94 renamed thin to light, fat to heavy
blanchet
parents: 42836
diff changeset
   536
  Tags of polymorphism * type_level * type_heaviness
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   537
42689
e38590764c34 versions of ! and ? for the ASCII-challenged Mirabelle
blanchet
parents: 42688
diff changeset
   538
fun try_unsuffixes ss s =
e38590764c34 versions of ! and ? for the ASCII-challenged Mirabelle
blanchet
parents: 42688
diff changeset
   539
  fold (fn s' => fn NONE => try (unsuffix s') s | some => some) ss NONE
e38590764c34 versions of ! and ? for the ASCII-challenged Mirabelle
blanchet
parents: 42688
diff changeset
   540
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   541
fun type_enc_from_string s =
42722
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   542
  (case try (unprefix "poly_") s of
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   543
     SOME s => (SOME Polymorphic, s)
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   544
   | NONE =>
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   545
     case try (unprefix "mono_") s of
42722
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   546
       SOME s => (SOME Monomorphic, s)
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   547
     | NONE =>
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   548
       case try (unprefix "mangled_") s of
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   549
         SOME s => (SOME Mangled_Monomorphic, s)
626e292d22a7 renamed type systems for more consistency
blanchet
parents: 42709
diff changeset
   550
       | NONE => (NONE, s))
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   551
  ||> (fn s =>
43624
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   552
          (* "_query" and "_bang" are for the ASCII-challenged Metis and
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   553
             Mirabelle. *)
42689
e38590764c34 versions of ! and ? for the ASCII-challenged Mirabelle
blanchet
parents: 42688
diff changeset
   554
          case try_unsuffixes ["?", "_query"] s of
43362
8d3a5b7b9a00 name tuning
blanchet
parents: 43361
diff changeset
   555
            SOME s => (Noninf_Nonmono_Types, s)
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   556
          | NONE =>
42689
e38590764c34 versions of ! and ? for the ASCII-challenged Mirabelle
blanchet
parents: 42688
diff changeset
   557
            case try_unsuffixes ["!", "_bang"] s of
43362
8d3a5b7b9a00 name tuning
blanchet
parents: 43361
diff changeset
   558
              SOME s => (Fin_Nonmono_Types, s)
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   559
            | NONE => (All_Types, s))
42828
8794ec73ec13 added syntax for "shallow" encodings
blanchet
parents: 42781
diff changeset
   560
  ||> apsnd (fn s =>
42837
358769224d94 renamed thin to light, fat to heavy
blanchet
parents: 42836
diff changeset
   561
                case try (unsuffix "_heavy") s of
43128
a19826080596 tuned names
blanchet
parents: 43125
diff changeset
   562
                  SOME s => (Heavyweight, s)
a19826080596 tuned names
blanchet
parents: 43125
diff changeset
   563
                | NONE => (Lightweight, s))
42837
358769224d94 renamed thin to light, fat to heavy
blanchet
parents: 42836
diff changeset
   564
  |> (fn (poly, (level, (heaviness, core))) =>
358769224d94 renamed thin to light, fat to heavy
blanchet
parents: 42836
diff changeset
   565
         case (core, (poly, level, heaviness)) of
43624
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   566
           ("simple", (NONE, _, Lightweight)) =>
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   567
           Simple_Types (First_Order, level)
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   568
         | ("simple_higher", (NONE, _, Lightweight)) =>
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   569
           if level = Noninf_Nonmono_Types then raise Same.SAME
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   570
           else Simple_Types (Higher_Order, level)
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
   571
         | ("guards", (SOME poly, _, _)) => Guards (poly, level, heaviness)
42886
208ec29cc013 improved "poly_preds_{bang,query}" by picking up good witnesses for the possible infinity of common type classes and ensuring that "?'a::type" doesn't ruin everything
blanchet
parents: 42885
diff changeset
   572
         | ("tags", (SOME Polymorphic, _, _)) =>
43361
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
   573
           Tags (Polymorphic, level, heaviness)
42854
d99167ac4f8a since we always default on the "_light" encoding (for good reasons, according to Judgment Day), get rid of that suffix
blanchet
parents: 42852
diff changeset
   574
         | ("tags", (SOME poly, _, _)) => Tags (poly, level, heaviness)
43128
a19826080596 tuned names
blanchet
parents: 43125
diff changeset
   575
         | ("args", (SOME poly, All_Types (* naja *), Lightweight)) =>
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
   576
           Guards (poly, Const_Arg_Types, Lightweight)
43128
a19826080596 tuned names
blanchet
parents: 43125
diff changeset
   577
         | ("erased", (NONE, All_Types (* naja *), Lightweight)) =>
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
   578
           Guards (Polymorphic, No_Types, Lightweight)
42753
c9552e617acc drop some type arguments to constants in unsound type systems + remove a few type systems that make no sense from the circulation
blanchet
parents: 42750
diff changeset
   579
         | _ => raise Same.SAME)
c9552e617acc drop some type arguments to constants in unsound type systems + remove a few type systems that make no sense from the circulation
blanchet
parents: 42750
diff changeset
   580
  handle Same.SAME => error ("Unknown type system: " ^ quote s ^ ".")
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   581
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   582
fun is_type_enc_higher_order (Simple_Types (Higher_Order, _)) = true
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   583
  | is_type_enc_higher_order _ = false
43624
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   584
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   585
fun polymorphism_of_type_enc (Simple_Types _) = Mangled_Monomorphic
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
   586
  | polymorphism_of_type_enc (Guards (poly, _, _)) = poly
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   587
  | polymorphism_of_type_enc (Tags (poly, _, _)) = poly
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   588
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   589
fun level_of_type_enc (Simple_Types (_, level)) = level
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
   590
  | level_of_type_enc (Guards (_, level, _)) = level
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   591
  | level_of_type_enc (Tags (_, level, _)) = level
42828
8794ec73ec13 added syntax for "shallow" encodings
blanchet
parents: 42781
diff changeset
   592
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   593
fun heaviness_of_type_enc (Simple_Types _) = Heavyweight
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
   594
  | heaviness_of_type_enc (Guards (_, _, heaviness)) = heaviness
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   595
  | heaviness_of_type_enc (Tags (_, _, heaviness)) = heaviness
42831
c9b0968484fb more work on "shallow" encoding + adjustments to other encodings
blanchet
parents: 42830
diff changeset
   596
42687
blanchet
parents: 42685
diff changeset
   597
fun is_type_level_virtually_sound level =
43362
8d3a5b7b9a00 name tuning
blanchet
parents: 43361
diff changeset
   598
  level = All_Types orelse level = Noninf_Nonmono_Types
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   599
val is_type_enc_virtually_sound =
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   600
  is_type_level_virtually_sound o level_of_type_enc
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   601
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   602
fun is_type_level_fairly_sound level =
43362
8d3a5b7b9a00 name tuning
blanchet
parents: 43361
diff changeset
   603
  is_type_level_virtually_sound level orelse level = Fin_Nonmono_Types
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   604
val is_type_enc_fairly_sound = is_type_level_fairly_sound o level_of_type_enc
42613
23b13b1bd565 use strings to encode type systems in ATP module, to reduce the amount of out-of-place information and also to make it easier to print the type system used
blanchet
parents: 42612
diff changeset
   605
43624
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   606
fun choose_format formats (Simple_Types (order, level)) =
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   607
    if member (op =) formats THF then
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   608
      (THF, Simple_Types (order, level))
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   609
    else if member (op =) formats TFF then
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   610
      (TFF, Simple_Types (First_Order, level))
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
   611
    else
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
   612
      choose_format formats (Guards (Mangled_Monomorphic, level, Heavyweight))
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   613
  | choose_format formats type_enc =
43101
1d46d85cd78b make "prepare_atp_problem" more robust w.r.t. choice of type system
blanchet
parents: 43098
diff changeset
   614
    (case hd formats of
1d46d85cd78b make "prepare_atp_problem" more robust w.r.t. choice of type system
blanchet
parents: 43098
diff changeset
   615
       CNF_UEQ =>
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   616
       (CNF_UEQ, case type_enc of
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
   617
                   Guards stuff =>
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
   618
                   (if is_type_enc_fairly_sound type_enc then Tags else Guards)
43101
1d46d85cd78b make "prepare_atp_problem" more robust w.r.t. choice of type system
blanchet
parents: 43098
diff changeset
   619
                       stuff
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   620
                 | _ => type_enc)
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   621
     | format => (format, type_enc))
43101
1d46d85cd78b make "prepare_atp_problem" more robust w.r.t. choice of type system
blanchet
parents: 43098
diff changeset
   622
44088
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   623
fun lift_lambdas ctxt type_enc =
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   624
  map (close_form o Envir.eta_contract) #> rpair ctxt
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   625
  #-> Lambda_Lifting.lift_lambdas
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   626
          (if polymorphism_of_type_enc type_enc = Polymorphic then
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   627
             SOME polymorphic_free_prefix
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   628
           else
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   629
             NONE)
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   630
          Lambda_Lifting.is_quantifier
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   631
  #> fst
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   632
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   633
fun intentionalize_def (Const (@{const_name All}, _) $ Abs (_, _, t)) =
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   634
    intentionalize_def t
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   635
  | intentionalize_def (Const (@{const_name HOL.eq}, _) $ t $ u) =
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   636
    let
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   637
      fun lam T t = Abs (Name.uu, T, t)
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   638
      val (head, args) = strip_comb t ||> rev
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   639
      val head_T = fastype_of head
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   640
      val n = length args
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   641
      val arg_Ts = head_T |> binder_types |> take n |> rev
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   642
      val u = u |> subst_atomic (args ~~ map Bound (0 upto n - 1))
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   643
    in HOLogic.eq_const head_T $ head $ fold lam arg_Ts u end
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   644
  | intentionalize_def t = t
3693baa6befb move lambda-lifting code to ATP encoding, so it can be used by Metis
blanchet
parents: 44003
diff changeset
   645
40114
blanchet
parents: 40069
diff changeset
   646
type translated_formula =
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   647
  {name : string,
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   648
   locality : locality,
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   649
   kind : formula_kind,
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   650
   iformula : (name, typ, iterm) formula,
43496
92f5a4c78b37 remove historical bloat -- another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents: 43495
diff changeset
   651
   atomic_types : typ list}
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   652
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   653
fun update_iformula f ({name, locality, kind, iformula, atomic_types}
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   654
                       : translated_formula) =
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   655
  {name = name, locality = locality, kind = kind, iformula = f iformula,
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   656
   atomic_types = atomic_types} : translated_formula
42542
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   657
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   658
fun fact_lift f ({iformula, ...} : translated_formula) = f iformula
42558
3d9930cb6770 cleaned up "explicit_apply" so that it shares most of its code path with the default mode of operation
blanchet
parents: 42557
diff changeset
   659
43064
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
   660
val type_instance = Sign.typ_instance o Proof_Context.theory_of
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
   661
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
   662
fun insert_type ctxt get_T x xs =
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
   663
  let val T = get_T x in
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
   664
    if exists (curry (type_instance ctxt) T o get_T) xs then xs
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
   665
    else x :: filter_out (curry (type_instance ctxt o swap) T o get_T) xs
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
   666
  end
42677
25496cd3c199 monotonic type inference in ATP Sledgehammer problems -- based on Claessen & al.'s CADE 2011 paper, Sect. 2.3.
blanchet
parents: 42675
diff changeset
   667
42753
c9552e617acc drop some type arguments to constants in unsound type systems + remove a few type systems that make no sense from the circulation
blanchet
parents: 42750
diff changeset
   668
(* The Booleans indicate whether all type arguments should be kept. *)
c9552e617acc drop some type arguments to constants in unsound type systems + remove a few type systems that make no sense from the circulation
blanchet
parents: 42750
diff changeset
   669
datatype type_arg_policy =
c9552e617acc drop some type arguments to constants in unsound type systems + remove a few type systems that make no sense from the circulation
blanchet
parents: 42750
diff changeset
   670
  Explicit_Type_Args of bool |
c9552e617acc drop some type arguments to constants in unsound type systems + remove a few type systems that make no sense from the circulation
blanchet
parents: 42750
diff changeset
   671
  Mangled_Type_Args of bool |
c9552e617acc drop some type arguments to constants in unsound type systems + remove a few type systems that make no sense from the circulation
blanchet
parents: 42750
diff changeset
   672
  No_Type_Args
41136
30bedf58b177 implemented new type system encoding "overload_args", which is more lightweight than "const_args" (the unsound default) and hopefully almost as sound
blanchet
parents: 41134
diff changeset
   673
42836
9adf6b3965b3 code cleanup, better handling of corner cases
blanchet
parents: 42834
diff changeset
   674
fun should_drop_arg_type_args (Simple_Types _) =
9adf6b3965b3 code cleanup, better handling of corner cases
blanchet
parents: 42834
diff changeset
   675
    false (* since TFF doesn't support overloading *)
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   676
  | should_drop_arg_type_args type_enc =
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   677
    level_of_type_enc type_enc = All_Types andalso
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   678
    heaviness_of_type_enc type_enc = Heavyweight
42831
c9b0968484fb more work on "shallow" encoding + adjustments to other encodings
blanchet
parents: 42830
diff changeset
   679
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   680
fun type_arg_policy type_enc s =
43628
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   681
  if s = type_tag_name then
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   682
    (if polymorphism_of_type_enc type_enc = Mangled_Monomorphic then
43623
e096b1effbbb mangle "ti" tags
blanchet
parents: 43622
diff changeset
   683
       Mangled_Type_Args
e096b1effbbb mangle "ti" tags
blanchet
parents: 43622
diff changeset
   684
     else
e096b1effbbb mangle "ti" tags
blanchet
parents: 43622
diff changeset
   685
       Explicit_Type_Args) false
43628
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   686
  else case type_enc of
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   687
    Tags (_, All_Types, Heavyweight) => No_Type_Args
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   688
  | _ =>
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   689
    if level_of_type_enc type_enc = No_Types orelse
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   690
       s = @{const_name HOL.eq} orelse
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   691
       (s = app_op_name andalso
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   692
        level_of_type_enc type_enc = Const_Arg_Types) then
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   693
      No_Type_Args
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   694
    else
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   695
      should_drop_arg_type_args type_enc
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   696
      |> (if polymorphism_of_type_enc type_enc = Mangled_Monomorphic then
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   697
            Mangled_Type_Args
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   698
          else
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   699
            Explicit_Type_Args)
42227
662b50b7126f if "monomorphize" is enabled, mangle the type information in the names by default
blanchet
parents: 42180
diff changeset
   700
43628
996b2022ff78 further repair "mangled_tags", now that tags are also mangled
blanchet
parents: 43626
diff changeset
   701
(* Make literals for sorted type variables. *)
43263
blanchet
parents: 43259
diff changeset
   702
fun generic_add_sorts_on_type (_, []) = I
blanchet
parents: 43259
diff changeset
   703
  | generic_add_sorts_on_type ((x, i), s :: ss) =
blanchet
parents: 43259
diff changeset
   704
    generic_add_sorts_on_type ((x, i), ss)
blanchet
parents: 43259
diff changeset
   705
    #> (if s = the_single @{sort HOL.type} then
43093
blanchet
parents: 43092
diff changeset
   706
          I
blanchet
parents: 43092
diff changeset
   707
        else if i = ~1 then
43263
blanchet
parents: 43259
diff changeset
   708
          insert (op =) (TyLitFree (`make_type_class s, `make_fixed_type_var x))
43093
blanchet
parents: 43092
diff changeset
   709
        else
43263
blanchet
parents: 43259
diff changeset
   710
          insert (op =) (TyLitVar (`make_type_class s,
blanchet
parents: 43259
diff changeset
   711
                                   (make_schematic_type_var (x, i), x))))
blanchet
parents: 43259
diff changeset
   712
fun add_sorts_on_tfree (TFree (s, S)) = generic_add_sorts_on_type ((s, ~1), S)
blanchet
parents: 43259
diff changeset
   713
  | add_sorts_on_tfree _ = I
blanchet
parents: 43259
diff changeset
   714
fun add_sorts_on_tvar (TVar z) = generic_add_sorts_on_type z
blanchet
parents: 43259
diff changeset
   715
  | add_sorts_on_tvar _ = I
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   716
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   717
fun type_literals_for_types type_enc add_sorts_on_typ Ts =
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   718
  [] |> level_of_type_enc type_enc <> No_Types ? fold add_sorts_on_typ Ts
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
   719
42534
46e690db16b8 fake type declarations for full-type args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents: 42533
diff changeset
   720
fun mk_aconns c phis =
46e690db16b8 fake type declarations for full-type args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents: 42533
diff changeset
   721
  let val (phis', phi') = split_last phis in
46e690db16b8 fake type declarations for full-type args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents: 42533
diff changeset
   722
    fold_rev (mk_aconn c) phis' phi'
46e690db16b8 fake type declarations for full-type args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents: 42533
diff changeset
   723
  end
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   724
fun mk_ahorn [] phi = phi
42534
46e690db16b8 fake type declarations for full-type args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents: 42533
diff changeset
   725
  | mk_ahorn phis psi = AConn (AImplies, [mk_aconns AAnd phis, psi])
42522
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   726
fun mk_aquant _ [] phi = phi
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   727
  | mk_aquant q xs (phi as AQuant (q', xs', phi')) =
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   728
    if q = q' then AQuant (q, xs @ xs', phi') else AQuant (q, xs, phi)
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   729
  | mk_aquant q xs phi = AQuant (q, xs, phi)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   730
42522
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   731
fun close_universally atom_vars phi =
41145
a5ee3b8e5a90 improve partially tagged encoding by adding a helper fact that coalesces consecutive "ti" tags
blanchet
parents: 41140
diff changeset
   732
  let
a5ee3b8e5a90 improve partially tagged encoding by adding a helper fact that coalesces consecutive "ti" tags
blanchet
parents: 41140
diff changeset
   733
    fun formula_vars bounds (AQuant (_, xs, phi)) =
42526
46d485f8d144 added room for types in ATP quantifiers
blanchet
parents: 42525
diff changeset
   734
        formula_vars (map fst xs @ bounds) phi
41145
a5ee3b8e5a90 improve partially tagged encoding by adding a helper fact that coalesces consecutive "ti" tags
blanchet
parents: 41140
diff changeset
   735
      | formula_vars bounds (AConn (_, phis)) = fold (formula_vars bounds) phis
42522
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   736
      | formula_vars bounds (AAtom tm) =
42526
46d485f8d144 added room for types in ATP quantifiers
blanchet
parents: 42525
diff changeset
   737
        union (op =) (atom_vars tm []
46d485f8d144 added room for types in ATP quantifiers
blanchet
parents: 42525
diff changeset
   738
                      |> filter_out (member (op =) bounds o fst))
42522
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   739
  in mk_aquant AForall (formula_vars [] phi []) phi end
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   740
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   741
fun iterm_vars (IApp (tm1, tm2)) = fold iterm_vars [tm1, tm2]
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   742
  | iterm_vars (IConst _) = I
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   743
  | iterm_vars (IVar (name, T)) = insert (op =) (name, SOME T)
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   744
  | iterm_vars (IAbs (_, tm)) = iterm_vars tm
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   745
fun close_iformula_universally phi = close_universally iterm_vars phi
42522
413b56894f82 close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents: 42521
diff changeset
   746
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   747
fun term_vars bounds (ATerm (name as (s, _), tms)) =
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   748
    (is_tptp_variable s andalso not (member (op =) bounds name))
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   749
    ? insert (op =) (name, NONE) #> fold (term_vars bounds) tms
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   750
  | term_vars bounds (AAbs ((name, _), tm)) = term_vars (name :: bounds) tm
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   751
fun close_formula_universally phi = close_universally (term_vars []) phi
41145
a5ee3b8e5a90 improve partially tagged encoding by adding a helper fact that coalesces consecutive "ti" tags
blanchet
parents: 41140
diff changeset
   752
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   753
val homo_infinite_type_name = @{type_name ind} (* any infinite type *)
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   754
val homo_infinite_type = Type (homo_infinite_type_name, [])
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   755
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   756
fun ho_term_from_typ format type_enc =
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   757
  let
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   758
    fun term (Type (s, Ts)) =
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   759
      ATerm (case (is_type_enc_higher_order type_enc, s) of
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   760
               (true, @{type_name bool}) => `I tptp_bool_type
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   761
             | (true, @{type_name fun}) => `I tptp_fun_type
43178
b5862142d378 use "" type only in THF and TFF -- might cause strange failures if used in FOF or CNF, depending on how liberal the prover is
blanchet
parents: 43175
diff changeset
   762
             | _ => if s = homo_infinite_type_name andalso
b5862142d378 use "" type only in THF and TFF -- might cause strange failures if used in FOF or CNF, depending on how liberal the prover is
blanchet
parents: 43175
diff changeset
   763
                       (format = TFF orelse format = THF) then
b5862142d378 use "" type only in THF and TFF -- might cause strange failures if used in FOF or CNF, depending on how liberal the prover is
blanchet
parents: 43175
diff changeset
   764
                      `I tptp_individual_type
b5862142d378 use "" type only in THF and TFF -- might cause strange failures if used in FOF or CNF, depending on how liberal the prover is
blanchet
parents: 43175
diff changeset
   765
                    else
b5862142d378 use "" type only in THF and TFF -- might cause strange failures if used in FOF or CNF, depending on how liberal the prover is
blanchet
parents: 43175
diff changeset
   766
                      `make_fixed_type_const s,
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   767
             map term Ts)
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   768
    | term (TFree (s, _)) = ATerm (`make_fixed_type_var s, [])
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   769
    | term (TVar ((x as (s, _)), _)) =
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   770
      ATerm ((make_schematic_type_var x, s), [])
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   771
  in term end
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   772
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   773
fun ho_term_for_type_arg format type_enc T =
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   774
  if T = dummyT then NONE else SOME (ho_term_from_typ format type_enc T)
43401
e93dfcb53535 fixed soundness bug made more visible by previous change
blanchet
parents: 43399
diff changeset
   775
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   776
(* This shouldn't clash with anything else. *)
42542
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   777
val mangled_type_sep = "\000"
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   778
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   779
fun generic_mangled_type_name f (ATerm (name, [])) = f name
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   780
  | generic_mangled_type_name f (ATerm (name, tys)) =
42761
8ea9c6fa8b53 fixed several bugs in Isar proof reconstruction, in particular w.r.t. mangled types and hAPP
blanchet
parents: 42755
diff changeset
   781
    f name ^ "(" ^ space_implode "," (map (generic_mangled_type_name f) tys)
8ea9c6fa8b53 fixed several bugs in Isar proof reconstruction, in particular w.r.t. mangled types and hAPP
blanchet
parents: 42755
diff changeset
   782
    ^ ")"
43692
264881a20f50 make SML/NJ happy + tuning
blanchet
parents: 43678
diff changeset
   783
  | generic_mangled_type_name _ _ = raise Fail "unexpected type abstraction"
42542
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   784
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
   785
val bool_atype = AType (`I tptp_bool_type)
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
   786
43085
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   787
fun make_simple_type s =
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   788
  if s = tptp_bool_type orelse s = tptp_fun_type orelse
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   789
     s = tptp_individual_type then
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   790
    s
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   791
  else
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   792
    simple_type_prefix ^ ascii_of s
0a2f5b86bdd7 first step in sharing more code between ATP and Metis translation
blanchet
parents: 43064
diff changeset
   793
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   794
fun ho_type_from_ho_term type_enc pred_sym ary =
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   795
  let
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   796
    fun to_atype ty =
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   797
      AType ((make_simple_type (generic_mangled_type_name fst ty),
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   798
              generic_mangled_type_name snd ty))
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   799
    fun to_afun f1 f2 tys = AFun (f1 (hd tys), f2 (nth tys 1))
42998
1c80902d0456 fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents: 42994
diff changeset
   800
    fun to_fo 0 ty = if pred_sym then bool_atype else to_atype ty
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   801
      | to_fo ary (ATerm (_, tys)) = to_afun to_atype (to_fo (ary - 1)) tys
43692
264881a20f50 make SML/NJ happy + tuning
blanchet
parents: 43678
diff changeset
   802
      | to_fo _ _ = raise Fail "unexpected type abstraction"
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
   803
    fun to_ho (ty as ATerm ((s, _), tys)) =
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   804
        if s = tptp_fun_type then to_afun to_ho to_ho tys else to_atype ty
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   805
      | to_ho _ = raise Fail "unexpected type abstraction"
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   806
  in if is_type_enc_higher_order type_enc then to_ho else to_fo ary end
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   807
43677
2cd0b478d1b6 added generation of lambdas in THF
nik
parents: 43676
diff changeset
   808
fun ho_type_from_typ format type_enc pred_sym ary =
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   809
  ho_type_from_ho_term type_enc pred_sym ary
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   810
  o ho_term_from_typ format type_enc
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   811
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   812
fun mangled_const_name format type_enc T_args (s, s') =
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   813
  let
43676
3b0b448b4d69 add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes first-order)
nik
parents: 43628
diff changeset
   814
    val ty_args = T_args |> map_filter (ho_term_for_type_arg format type_enc)
42963
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   815
    fun type_suffix f g =
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   816
      fold_rev (curry (op ^) o g o prefix mangled_type_sep
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   817
                o generic_mangled_type_name f) ty_args ""
5725deb11ae7 identify HOL functions with THF functions
blanchet
parents: 42962
diff changeset
   818
  in (s ^ type_suffix fst ascii_of, s' ^ type_suffix snd I) end
42542
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   819
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
   820
val parse_mangled_ident =
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   821
  Scan.many1 (not o member (op =) ["(", ")", ","]) >> implode
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   822
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
   823
fun parse_mangled_type x =
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   824
  (parse_mangled_ident
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   825
   -- Scan.optional ($$ "(" |-- Scan.optional parse_mangled_types [] --| $$ ")")
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   826
                    [] >> ATerm) x
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   827
and parse_mangled_types x =
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   828
  (parse_mangled_type ::: Scan.repeat ($$ "," |-- parse_mangled_type)) x
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   829
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
   830
fun unmangled_type s =
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   831
  s |> suffix ")" |> raw_explode
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   832
    |> Scan.finite Symbol.stopper
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   833
           (Scan.error (!! (fn _ => raise Fail ("unrecognized mangled type " ^
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   834
                                                quote s)) parse_mangled_type))
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   835
    |> fst
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   836
42561
23ddc4e3d19c have properly type-instantiated helper facts (combinators and If)
blanchet
parents: 42560
diff changeset
   837
val unmangled_const_name = space_explode mangled_type_sep #> hd
42542
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   838
fun unmangled_const s =
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   839
  let val ss = space_explode mangled_type_sep s in
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   840
    (hd ss, map unmangled_type (tl ss))
024920b65ce2 perform constant mangling and/or removal of its type args in an earlier phase, so that the rest of the code doesn't need to worry about it
blanchet
parents: 42541
diff changeset
   841
  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
   842
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   843
fun introduce_proxies type_enc =
42568
7b9801a34836 no needless "fequal" proxies if "explicit_apply" is set + always have readable names
blanchet
parents: 42566
diff changeset
   844
  let
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   845
    fun tweak_ho_quant ho_quant T [IAbs _] = IConst (`I ho_quant, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   846
      | tweak_ho_quant ho_quant (T as Type (_, [p_T as Type (_, [x_T, _]), _]))
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   847
                       _ =
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   848
        (* Eta-expand "!!" and "??", to work around LEO-II 1.2.8 parser
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   849
           limitation. This works in conjuction with special code in
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   850
           "ATP_Problem" that uses the syntactic sugar "!" and "?" whenever
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   851
           possible. *)
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   852
        IAbs ((`I "P", p_T),
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   853
              IApp (IConst (`I ho_quant, T, []),
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   854
                    IAbs ((`I "X", x_T),
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   855
                          IApp (IConst (`I "P", p_T, []),
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   856
                                IConst (`I "X", x_T, [])))))
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   857
      | tweak_ho_quant _ _ _ = raise Fail "unexpected type for quantifier"
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   858
    fun intro top_level args (IApp (tm1, tm2)) =
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   859
        IApp (intro top_level (tm2 :: args) tm1, intro false [] tm2)
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   860
      | intro top_level args (IConst (name as (s, _), T, T_args)) =
42570
77f94ac04f32 cleanup proxification/unproxification and make sure that "num_atp_type_args" is called on the proxy in the reconstruction code, since "c_fequal" has one type arg but the unproxified equal has 0
blanchet
parents: 42569
diff changeset
   861
        (case proxify_const s of
43159
29b55f292e0b added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents: 43139
diff changeset
   862
           SOME proxy_base =>
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   863
           if top_level orelse is_type_enc_higher_order type_enc then
43000
bd424c3dde46 cleaner handling of equality and proxies (esp. for THF)
blanchet
parents: 42998
diff changeset
   864
             case (top_level, s) of
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   865
               (_, "c_False") => IConst (`I tptp_false, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   866
             | (_, "c_True") => IConst (`I tptp_true, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   867
             | (false, "c_Not") => IConst (`I tptp_not, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   868
             | (false, "c_conj") => IConst (`I tptp_and, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   869
             | (false, "c_disj") => IConst (`I tptp_or, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   870
             | (false, "c_implies") => IConst (`I tptp_implies, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   871
             | (false, "c_All") => tweak_ho_quant tptp_ho_forall T args
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   872
             | (false, "c_Ex") => tweak_ho_quant tptp_ho_exists T args
43000
bd424c3dde46 cleaner handling of equality and proxies (esp. for THF)
blanchet
parents: 42998
diff changeset
   873
             | (false, s) =>
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   874
               if is_tptp_equal s then IConst (`I tptp_equal, T, [])
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   875
               else IConst (proxy_base |>> prefix const_prefix, T, T_args)
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   876
             | _ => IConst (name, T, [])
42569
5737947e4c77 make sure that fequal keeps its type arguments for mangled type systems
blanchet
parents: 42568
diff changeset
   877
           else
43987
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   878
             IConst (proxy_base |>> prefix const_prefix, T, T_args)
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   879
          | NONE => IConst (name, T, T_args))
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   880
      | intro _ _ (IAbs (bound, tm)) = IAbs (bound, intro false [] tm)
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   881
      | intro _ _ tm = tm
2850b7dc27a4 further worked around LEO-II parser limitation, with eta-expansion
blanchet
parents: 43985
diff changeset
   882
  in intro true [] end
42568
7b9801a34836 no needless "fequal" proxies if "explicit_apply" is set + always have readable names
blanchet
parents: 42566
diff changeset
   883
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   884
fun iformula_from_prop thy type_enc eq_as_iff =
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   885
  let
42568
7b9801a34836 no needless "fequal" proxies if "explicit_apply" is set + always have readable names
blanchet
parents: 42566
diff changeset
   886
    fun do_term bs t atomic_types =
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
   887
      iterm_from_term thy bs (Envir.eta_contract t)
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
   888
      |>> (introduce_proxies type_enc #> AAtom)
42568
7b9801a34836 no needless "fequal" proxies if "explicit_apply" is set + always have readable names
blanchet
parents: 42566
diff changeset
   889
      ||> union (op =) atomic_types
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   890
    fun do_quant bs q s T t' =
43324
2b47822868e4 discontinued Name.variant to emphasize that this is old-style / indirect;
wenzelm
parents: 43304
diff changeset
   891
      let val s = singleton (Name.variant_list (map fst bs)) s in
38518
54727b44e277 handle bound name conflicts gracefully in FOF translation
blanchet
parents: 38496
diff changeset
   892
        do_formula ((s, T) :: bs) t'
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
   893
        #>> mk_aquant q [(`make_bound_var s, SOME T)]
38518
54727b44e277 handle bound name conflicts gracefully in FOF translation
blanchet
parents: 38496
diff changeset
   894
      end
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   895
    and do_conn bs c t1 t2 =
43198
7a2bc89ac48e whitespace tuning
blanchet
parents: 43194
diff changeset
   896
      do_formula bs t1 ##>> do_formula bs t2 #>> uncurry (mk_aconn c)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   897
    and do_formula bs t =
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   898
      case t of
43096
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
   899
        @{const Trueprop} $ t1 => do_formula bs t1
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
   900
      | @{const Not} $ t1 => do_formula bs t1 #>> mk_anot
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   901
      | Const (@{const_name All}, _) $ Abs (s, T, t') =>
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   902
        do_quant bs AForall s T t'
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   903
      | Const (@{const_name Ex}, _) $ Abs (s, T, t') =>
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   904
        do_quant bs AExists s T t'
38795
848be46708dc formerly unnamed infix conjunction and disjunction now named HOL.conj and HOL.disj
haftmann
parents: 38786
diff changeset
   905
      | @{const HOL.conj} $ t1 $ t2 => do_conn bs AAnd t1 t2
848be46708dc formerly unnamed infix conjunction and disjunction now named HOL.conj and HOL.disj
haftmann
parents: 38786
diff changeset
   906
      | @{const HOL.disj} $ t1 $ t2 => do_conn bs AOr t1 t2
38786
e46e7a9cb622 formerly unnamed infix impliciation now named HOL.implies
haftmann
parents: 38752
diff changeset
   907
      | @{const HOL.implies} $ t1 $ t2 => do_conn bs AImplies t1 t2
38864
4abe644fcea5 formerly unnamed infix equality now named HOL.eq
haftmann
parents: 38829
diff changeset
   908
      | Const (@{const_name HOL.eq}, Type (_, [@{typ bool}, _])) $ t1 $ t2 =>
41140
9c68004b8c9d added Sledgehammer support for higher-order propositional reasoning
blanchet
parents: 41138
diff changeset
   909
        if eq_as_iff then do_conn bs AIff t1 t2 else do_term bs t
9c68004b8c9d added Sledgehammer support for higher-order propositional reasoning
blanchet
parents: 41138
diff changeset
   910
      | _ => do_term bs t
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   911
  in do_formula [] end
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   912
43264
a1a48c69d623 don't needlessly presimplify -- makes ATP problem preparation much faster
blanchet
parents: 43263
diff changeset
   913
fun presimplify_term _ [] t = t
a1a48c69d623 don't needlessly presimplify -- makes ATP problem preparation much faster
blanchet
parents: 43263
diff changeset
   914
  | presimplify_term ctxt presimp_consts t =
a1a48c69d623 don't needlessly presimplify -- makes ATP problem preparation much faster
blanchet
parents: 43263
diff changeset
   915
    t |> exists_Const (member (op =) presimp_consts o fst) t
a1a48c69d623 don't needlessly presimplify -- makes ATP problem preparation much faster
blanchet
parents: 43263
diff changeset
   916
         ? (Skip_Proof.make_thm (Proof_Context.theory_of ctxt)
a1a48c69d623 don't needlessly presimplify -- makes ATP problem preparation much faster
blanchet
parents: 43263
diff changeset
   917
            #> Meson.presimplify ctxt
a1a48c69d623 don't needlessly presimplify -- makes ATP problem preparation much faster
blanchet
parents: 43263
diff changeset
   918
            #> prop_of)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   919
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   920
fun concealed_bound_name j = atp_weak_prefix ^ string_of_int j
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   921
fun conceal_bounds Ts t =
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   922
  subst_bounds (map (Free o apfst concealed_bound_name)
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   923
                    (0 upto length Ts - 1 ~~ Ts), t)
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   924
fun reveal_bounds Ts =
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   925
  subst_atomic (map (fn (j, T) => (Free (concealed_bound_name j, T), Bound j))
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   926
                    (0 upto length Ts - 1 ~~ Ts))
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
   927
43265
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
   928
fun is_fun_equality (@{const_name HOL.eq},
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
   929
                     Type (_, [Type (@{type_name fun}, _), _])) = true
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
   930
  | is_fun_equality _ = false
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
   931
42747
f132d13fcf75 use the same code for extensionalization in Metis and Sledgehammer and generalize that code so that it gracefully handles negations (e.g. negated conjecture), formulas of the form (%x. t) = u, etc.
blanchet
parents: 42742
diff changeset
   932
fun extensionalize_term ctxt t =
43265
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
   933
  if exists_Const is_fun_equality t then
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
   934
    let val thy = Proof_Context.theory_of ctxt in
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
   935
      t |> cterm_of thy |> Meson.extensionalize_conv ctxt
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
   936
        |> prop_of |> Logic.dest_equals |> snd
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
   937
    end
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
   938
  else
096237fe70f1 don't needlessly extensionalize
blanchet
parents: 43264
diff changeset
   939
    t
38608
01ed56c46259 beta eta contract the Sledgehammer conjecture (and also the axioms, although this might not be needed), just like Metis does (implicitly);
blanchet
parents: 38606
diff changeset
   940
43862
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
   941
fun simple_translate_lambdas do_lambdas ctxt t =
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   942
  let val thy = Proof_Context.theory_of ctxt in
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   943
    if Meson.is_fol_term thy t then
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   944
      t
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   945
    else
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   946
      let
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   947
        fun aux Ts t =
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   948
          case t of
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   949
            @{const Not} $ t1 => @{const Not} $ aux Ts t1
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   950
          | (t0 as Const (@{const_name All}, _)) $ Abs (s, T, t') =>
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   951
            t0 $ Abs (s, T, aux (T :: Ts) t')
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   952
          | (t0 as Const (@{const_name All}, _)) $ t1 =>
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   953
            aux Ts (t0 $ eta_expand Ts t1 1)
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   954
          | (t0 as Const (@{const_name Ex}, _)) $ Abs (s, T, t') =>
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   955
            t0 $ Abs (s, T, aux (T :: Ts) t')
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   956
          | (t0 as Const (@{const_name Ex}, _)) $ t1 =>
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   957
            aux Ts (t0 $ eta_expand Ts t1 1)
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   958
          | (t0 as @{const HOL.conj}) $ t1 $ t2 => t0 $ aux Ts t1 $ aux Ts t2
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   959
          | (t0 as @{const HOL.disj}) $ t1 $ t2 => t0 $ aux Ts t1 $ aux Ts t2
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   960
          | (t0 as @{const HOL.implies}) $ t1 $ t2 => t0 $ aux Ts t1 $ aux Ts t2
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   961
          | (t0 as Const (@{const_name HOL.eq}, Type (_, [@{typ bool}, _])))
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   962
              $ t1 $ t2 =>
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   963
            t0 $ aux Ts t1 $ aux Ts t2
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   964
          | _ =>
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   965
            if not (exists_subterm (fn Abs _ => true | _ => false) t) then t
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   966
            else t |> Envir.eta_contract |> do_lambdas ctxt Ts
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   967
        val (t, ctxt') = Variable.import_terms true [t] ctxt |>> the_single
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   968
      in t |> aux [] |> singleton (Variable.export_terms ctxt' ctxt) end
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   969
  end
43856
d636b053d4ff move more lambda-handling logic to Sledgehammer, from ATP module, for formal dependency reasons
blanchet
parents: 43830
diff changeset
   970
43997
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
   971
fun do_cheaply_conceal_lambdas Ts (t1 $ t2) =
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
   972
    do_cheaply_conceal_lambdas Ts t1
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
   973
    $ do_cheaply_conceal_lambdas Ts t2
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
   974
  | do_cheaply_conceal_lambdas Ts (Abs (_, T, t)) =
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
   975
    Free (polymorphic_free_prefix ^ serial_string (),
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
   976
          T --> fastype_of1 (T :: Ts, t))
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
   977
  | do_cheaply_conceal_lambdas _ t = t
43856
d636b053d4ff move more lambda-handling logic to Sledgehammer, from ATP module, for formal dependency reasons
blanchet
parents: 43830
diff changeset
   978
43862
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
   979
fun do_introduce_combinators ctxt Ts t =
42361
23f352990944 modernized structure Proof_Context;
wenzelm
parents: 42353
diff changeset
   980
  let val thy = Proof_Context.theory_of ctxt in
43905
1ace987e22e5 avoid calling "Term.is_first_order" (indirectly) on a term with loose de Bruijns -- this is not necessary anyway because of the Abs check in "simple_translate_lambdas"
blanchet
parents: 43864
diff changeset
   981
    t |> conceal_bounds Ts
1ace987e22e5 avoid calling "Term.is_first_order" (indirectly) on a term with loose de Bruijns -- this is not necessary anyway because of the Abs check in "simple_translate_lambdas"
blanchet
parents: 43864
diff changeset
   982
      |> cterm_of thy
1ace987e22e5 avoid calling "Term.is_first_order" (indirectly) on a term with loose de Bruijns -- this is not necessary anyway because of the Abs check in "simple_translate_lambdas"
blanchet
parents: 43864
diff changeset
   983
      |> Meson_Clausify.introduce_combinators_in_cterm
1ace987e22e5 avoid calling "Term.is_first_order" (indirectly) on a term with loose de Bruijns -- this is not necessary anyway because of the Abs check in "simple_translate_lambdas"
blanchet
parents: 43864
diff changeset
   984
      |> prop_of |> Logic.dest_equals |> snd
1ace987e22e5 avoid calling "Term.is_first_order" (indirectly) on a term with loose de Bruijns -- this is not necessary anyway because of the Abs check in "simple_translate_lambdas"
blanchet
parents: 43864
diff changeset
   985
      |> reveal_bounds Ts
38491
f7e51d981a9f invoke Variable.export/import_term on the entire formula, to make sure that schematic variables don't get different indices in different subterms;
blanchet
parents: 38282
diff changeset
   986
  end
43862
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
   987
  (* A type variable of sort "{}" will make abstraction fail. *)
43997
578460971517 fixed lambda concealing
blanchet
parents: 43989
diff changeset
   988
  handle THM _ => t |> do_cheaply_conceal_lambdas Ts
43862
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
   989
val introduce_combinators = simple_translate_lambdas do_introduce_combinators
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
   990
43864
58a7b3fdc193 fixed lambda-liftg: must ensure the formulas are in close form
blanchet
parents: 43863
diff changeset
   991
fun preprocess_abstractions_in_terms trans_lambdas facts =
43862
a14fdb8c0497 pass kind to lambda-translation function
blanchet
parents: 43861
diff changeset
   992
  let
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   993
    val (facts, lambda_ts) =
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   994
      facts |> map (snd o snd) |> trans_lambdas 
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   995
            |>> map2 (fn (name, (kind, _)) => fn t => (name, (kind, t))) facts
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   996
    val lambda_facts =
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   997
      map2 (fn t => fn j =>
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   998
               ((lambda_fact_prefix ^ Int.toString j, Helper), (Axiom, t)))
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
   999
           lambda_ts (1 upto length lambda_ts)
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1000
  in (facts, lambda_facts) end
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1001
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1002
(* Metis's use of "resolve_tac" freezes the schematic variables. We simulate the
42353
7797efa897a1 correctly handle TFrees that occur in (local) facts -- Metis did the right thing here but Sledgehammer was incorrectly generating spurious preconditions such as "dense_linorder(t_a)"
blanchet
parents: 42237
diff changeset
  1003
   same in Sledgehammer to prevent the discovery of unreplayable proofs. *)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1004
fun freeze_term t =
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1005
  let
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1006
    fun aux (t $ u) = aux t $ aux u
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1007
      | aux (Abs (s, T, t)) = Abs (s, T, aux t)
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1008
      | aux (Var ((s, i), T)) =
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1009
        Free (atp_weak_prefix ^ s ^ "_" ^ string_of_int i, T)
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1010
      | aux t = t
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1011
  in t |> exists_subterm is_Var t ? aux end
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1012
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1013
fun presimp_prop ctxt presimp_consts t =
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1014
  let
42361
23f352990944 modernized structure Proof_Context;
wenzelm
parents: 42353
diff changeset
  1015
    val thy = Proof_Context.theory_of ctxt
38608
01ed56c46259 beta eta contract the Sledgehammer conjecture (and also the axioms, although this might not be needed), just like Metis does (implicitly);
blanchet
parents: 38606
diff changeset
  1016
    val t = t |> Envir.beta_eta_contract
42944
9e620869a576 improved Waldmeister support -- even run it by default on unit equational goals
blanchet
parents: 42943
diff changeset
  1017
              |> transform_elim_prop
41211
1e2e16bc0077 no need to do a super-duper atomization if Metis fails afterwards anyway
blanchet
parents: 41199
diff changeset
  1018
              |> Object_Logic.atomize_term thy
42563
e70ffe3846d0 improve helper type instantiation code
blanchet
parents: 42562
diff changeset
  1019
    val need_trueprop = (fastype_of t = @{typ bool})
43096
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1020
  in
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1021
    t |> need_trueprop ? HOLogic.mk_Trueprop
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1022
      |> Raw_Simplifier.rewrite_term thy (Meson.unfold_set_const_simps ctxt) []
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1023
      |> extensionalize_term ctxt
43264
a1a48c69d623 don't needlessly presimplify -- makes ATP problem preparation much faster
blanchet
parents: 43263
diff changeset
  1024
      |> presimplify_term ctxt presimp_consts
43120
a9c2cdf4ae97 make sure "Trueprop" is removed before combinators are added -- the code is fragile in that respect
blanchet
parents: 43105
diff changeset
  1025
      |> perhaps (try (HOLogic.dest_Trueprop))
43096
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1026
  end
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1027
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1028
(* making fact and conjecture formulas *)
43626
a867ebb12209 renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents: 43624
diff changeset
  1029
fun make_formula thy type_enc eq_as_iff name loc kind t =
43096
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1030
  let
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1031
    val (iformula, atomic_types) =
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1032
      iformula_from_prop thy type_enc eq_as_iff t []
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1033
  in
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1034
    {name = name, locality = loc, kind = kind, iformula = iformula,
42562
f1d903f789b1 killed needless datatype "combtyp" in Metis
blanchet
parents: 42561
diff changeset
  1035
     atomic_types = atomic_types}
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1036
  end
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1037
43860
57ef3cd4126e more refactoring of preprocessing, so as to be able to centralize it
blanchet
parents: 43859
diff changeset
  1038
fun make_fact ctxt format type_enc eq_as_iff ((name, loc), t) =
43096
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1039
  let val thy = Proof_Context.theory_of ctxt in
43860
57ef3cd4126e more refactoring of preprocessing, so as to be able to centralize it
blanchet
parents: 43859
diff changeset
  1040
    case t |> make_formula thy type_enc (eq_as_iff andalso format <> CNF) name
43624
de026aecab9b cleaner handling of higher-order simple types, so that it's also possible to use first-order simple types with LEO-II and company
blanchet
parents: 43623
diff changeset
  1041
                           loc Axiom of
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1042
      formula as {iformula = AAtom (IConst ((s, _), _, _)), ...} =>
43096
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1043
      if s = tptp_true then NONE else SOME formula
43295
30aaab778416 pass Metis facts and negated conjecture as facts, with (almost) correctly set localities, so that the correct encoding is used for nonmonotonic occurrences of infinite types
blanchet
parents: 43293
diff changeset
  1044
    | formula => SOME formula
43096
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1045
  end
42561
23ddc4e3d19c have properly type-instantiated helper facts (combinators and If)
blanchet
parents: 42560
diff changeset
  1046
43860
57ef3cd4126e more refactoring of preprocessing, so as to be able to centralize it
blanchet
parents: 43859
diff changeset
  1047
fun make_conjecture ctxt format type_enc ps =
43096
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1048
  let
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1049
    val thy = Proof_Context.theory_of ctxt
43860
57ef3cd4126e more refactoring of preprocessing, so as to be able to centralize it
blanchet
parents: 43859
diff changeset
  1050
    val last = length ps - 1
43096
f181d66046d4 don't preprocess twice
blanchet
parents: 43093
diff changeset
  1051
  in
43863
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1052
    map2 (fn j => fn ((name, loc), (kind, t)) =>
a43d61270142 ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambda-lifting (freshness of new names)
blanchet
parents: 43862
diff changeset
  1053
             t |> make_formula thy type_enc (format <> CNF) name loc kind
43860
57ef3cd4126e more refactoring of preprocessing, so as to be able to centralize it
blanchet
parents: 43859
diff changeset
  1054
               |> (j <> last) = (kind = Conjecture) ? update_iformula mk_anot)
57ef3cd4126e more refactoring of preprocessing, so as to be able to centralize it
blanchet
parents: 43859
diff changeset
  1055
         (0 upto last) ps
38613
4ca2cae2653f use "hypothesis" rather than "conjecture" for hypotheses in TPTP format;
blanchet
parents: 38610
diff changeset
  1056
  end
38282
319c59682c51 move Sledgehammer's HOL -> FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff changeset
  1057
42682
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1058
(** Finite and infinite type inference **)
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1059
42886
208ec29cc013 improved "poly_preds_{bang,query}" by picking up good witnesses for the possible infinity of common type classes and ensuring that "?'a::type" doesn't ruin everything
blanchet
parents: 42885
diff changeset
  1060
fun deep_freeze_atyp (TVar (_, S)) = TFree ("v", S)
208ec29cc013 improved "poly_preds_{bang,query}" by picking up good witnesses for the possible infinity of common type classes and ensuring that "?'a::type" doesn't ruin everything
blanchet
parents: 42885
diff changeset
  1061
  | deep_freeze_atyp T = T
208ec29cc013 improved "poly_preds_{bang,query}" by picking up good witnesses for the possible infinity of common type classes and ensuring that "?'a::type" doesn't ruin everything
blanchet
parents: 42885
diff changeset
  1062
val deep_freeze_type = map_atyps deep_freeze_atyp
208ec29cc013 improved "poly_preds_{bang,query}" by picking up good witnesses for the possible infinity of common type classes and ensuring that "?'a::type" doesn't ruin everything
blanchet
parents: 42885
diff changeset
  1063
42682
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1064
(* Finite types such as "unit", "bool", "bool * bool", and "bool => bool" are
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1065
   dangerous because their "exhaust" properties can easily lead to unsound ATP
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1066
   proofs. On the other hand, all HOL infinite types can be given the same
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1067
   models in first-order logic (via Löwenheim-Skolem). *)
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1068
42886
208ec29cc013 improved "poly_preds_{bang,query}" by picking up good witnesses for the possible infinity of common type classes and ensuring that "?'a::type" doesn't ruin everything
blanchet
parents: 42885
diff changeset
  1069
fun should_encode_type ctxt (nonmono_Ts as _ :: _) _ T =
208ec29cc013 improved "poly_preds_{bang,query}" by picking up good witnesses for the possible infinity of common type classes and ensuring that "?'a::type" doesn't ruin everything
blanchet
parents: 42885
diff changeset
  1070
    exists (curry (type_instance ctxt) (deep_freeze_type T)) nonmono_Ts
42836
9adf6b3965b3 code cleanup, better handling of corner cases
blanchet
parents: 42834
diff changeset
  1071
  | should_encode_type _ _ All_Types _ = true
43572
ae612a423dad added "sound" option to force Sledgehammer to be pedantically sound
blanchet
parents: 43501
diff changeset
  1072
  | should_encode_type ctxt _ Fin_Nonmono_Types T =
ae612a423dad added "sound" option to force Sledgehammer to be pedantically sound
blanchet
parents: 43501
diff changeset
  1073
    is_type_surely_finite ctxt false T
42682
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1074
  | should_encode_type _ _ _ _ = false
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1075
43989
eb763b3ff9ed renamed "preds" encodings to "guards"
blanchet
parents: 43987
diff changeset
  1076
fun should_predicate_on_type ctxt nonmono_Ts (Guards (_, level, heaviness))
42834
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1077
                             should_predicate_on_var T =
43128
a19826080596 tuned names
blanchet
parents: 43125
diff changeset
  1078
    (heaviness = Heavyweight orelse should_predicate_on_var ()) andalso
42878
85ac4c12a4b7 slightly fewer type predicates introduced in the lightweight encoding, based on the observation that only universal positive equalities are dangerous
blanchet
parents: 42855
diff changeset
  1079
    should_encode_type ctxt nonmono_Ts level T
42834
40f7691d0539 implemented thin versions of "preds" type systems + fixed various issues with type args
blanchet
parents: 42832
diff changeset
  1080
  | should_predicate_on_type _ _ _ _ _ = false
42682
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1081
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1082
fun is_var_or_bound_var (IConst ((s, _), _, _)) =
42836
9adf6b3965b3 code cleanup, better handling of corner cases
blanchet
parents: 42834
diff changeset
  1083
    String.isPrefix bound_var_prefix s
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1084
  | is_var_or_bound_var (IVar _) = true
42836
9adf6b3965b3 code cleanup, better handling of corner cases
blanchet
parents: 42834
diff changeset
  1085
  | is_var_or_bound_var _ = false
9adf6b3965b3 code cleanup, better handling of corner cases
blanchet
parents: 42834
diff changeset
  1086
43361
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1087
datatype tag_site =
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1088
  Top_Level of bool option |
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1089
  Eq_Arg of bool option |
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1090
  Elsewhere
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  1091
43361
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1092
fun should_tag_with_type _ _ _ (Top_Level _) _ _ = false
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1093
  | should_tag_with_type ctxt nonmono_Ts (Tags (poly, level, heaviness)) site
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1094
                         u T =
42837
358769224d94 renamed thin to light, fat to heavy
blanchet
parents: 42836
diff changeset
  1095
    (case heaviness of
43128
a19826080596 tuned names
blanchet
parents: 43125
diff changeset
  1096
       Heavyweight => should_encode_type ctxt nonmono_Ts level T
a19826080596 tuned names
blanchet
parents: 43125
diff changeset
  1097
     | Lightweight =>
42836
9adf6b3965b3 code cleanup, better handling of corner cases
blanchet
parents: 42834
diff changeset
  1098
       case (site, is_var_or_bound_var u) of
43361
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1099
         (Eq_Arg pos, true) =>
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1100
         (* The first disjunct prevents a subtle soundness issue explained in
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1101
            Blanchette's Ph.D. thesis. See also
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1102
            "formula_lines_for_lightweight_tags_sym_decl". *)
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1103
         (pos <> SOME false andalso poly = Polymorphic andalso
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1104
          level <> All_Types andalso heaviness = Lightweight andalso
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1105
          exists (fn T' => type_instance ctxt (T', T)) nonmono_Ts) orelse
e37b54d429f5 revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents: 43324
diff changeset
  1106
         should_encode_type ctxt nonmono_Ts level T
42829
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  1107
       | _ => false)
1558741f8a72 started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents: 42828
diff changeset
  1108
  | should_tag_with_type _ _ _ _ _ _ = false
42682
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1109
42994
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  1110
fun homogenized_type ctxt nonmono_Ts level =
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  1111
  let
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  1112
    val should_encode = should_encode_type ctxt nonmono_Ts level
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  1113
    fun homo 0 T = if should_encode T then T else homo_infinite_type
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  1114
      | homo ary (Type (@{type_name fun}, [T1, T2])) =
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  1115
        homo 0 T1 --> homo (ary - 1) T2
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  1116
      | homo _ _ = raise Fail "expected function type"
fe291ab75eb5 towards supporting non-simply-typed encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents: 42966
diff changeset
  1117
  in homo end
42682
562046fd8e0c added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFF-types)
blanchet
parents: 42680
diff changeset
  1118
42573
744215c3e90c got rid of one "sym_table" in "prepare_atp_problem" now that proxies are always handled first, and tuned accordingly
blanchet
parents: 42572
diff changeset
  1119
(** "hBOOL" and "hAPP" **)
41313
a96ac4d180b7 optionally supply constant weights to E -- turned off by default until properly parameterized
blanchet
parents: 41211
diff changeset
  1120
42574
blanchet
parents: 42573
diff changeset
  1121
type sym_info =
43064
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
  1122
  {pred_sym : bool, min_ary : int, max_ary : int, types : typ list}
42563
e70ffe3846d0 improve helper type instantiation code
blanchet
parents: 42562
diff changeset
  1123
43859
b7890554c424 renamed internal data structure
blanchet
parents: 43858
diff changeset
  1124
fun add_iterm_syms_to_table ctxt explicit_apply =
42558
3d9930cb6770 cleaned up "explicit_apply" so that it shares most of its code path with the default mode of operation
blanchet
parents: 42557
diff changeset
  1125
  let
43064
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
  1126
    fun consider_var_arity const_T var_T max_ary =
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
  1127
      let
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
  1128
        fun iter ary T =
43210
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1129
          if ary = max_ary orelse type_instance ctxt (var_T, T) orelse
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1130
             type_instance ctxt (T, var_T) then
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1131
            ary
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1132
          else
7384b771805d made "explicit_apply"'s smart mode (more) complete
blanchet
parents: 43207
diff changeset
  1133
            iter (ary + 1) (range_type T)
43064
b6e61d22fa61 made "explicit_apply" smarter -- no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents: 43039
diff changeset
  1134
      in iter 0 const_T end
43201
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1135
    fun add_var_or_bound_var T (accum as ((bool_vars, fun_var_Ts), sym_tab)) =
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1136
      if explicit_apply = NONE andalso
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1137
         (can dest_funT T orelse T = @{typ bool}) then
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1138
        let
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1139
          val bool_vars' = bool_vars orelse body_type T = @{typ bool}
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1140
          fun repair_min_arity {pred_sym, min_ary, max_ary, types} =
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1141
            {pred_sym = pred_sym andalso not bool_vars',
43213
e1fdd27e0c98 generate less type information in polymorphic case
blanchet
parents: 43210
diff changeset
  1142
             min_ary = fold (fn T' => consider_var_arity T' T) types min_ary,
43201
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1143
             max_ary = max_ary, types = types}
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1144
          val fun_var_Ts' =
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1145
            fun_var_Ts |> can dest_funT T ? insert_type ctxt I T
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1146
        in
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1147
          if bool_vars' = bool_vars andalso
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1148
             pointer_eq (fun_var_Ts', fun_var_Ts) then
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1149
            accum
43167
839f599bc7ed ensured that the logic for "explicit_apply = smart" also works on CNF (i.e. new Metis)
blanchet
parents: 43159
diff changeset
  1150
          else
43213
e1fdd27e0c98 generate less type information in polymorphic case
blanchet
parents: 43210
diff changeset
  1151
            ((bool_vars', fun_var_Ts'), Symtab.map (K repair_min_arity) sym_tab)
43201
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1152
        end
0c9bf1a8e0d8 make "smart" mode of "explicit_apply" smarter, by also detecting the other kind of higher-order quantification, namely "bool"s
blanchet
parents: 43198
diff changeset
  1153
      else