author  blanchet 
Mon, 22 Aug 2011 15:02:45 +0200  
changeset 44402  f0bc74b9161e 
parent 44399  cd1e32b8d4c4 
child 44403  15160cdc4688 
permissions  rwrr 
43283  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 lambdalifting (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 firstorder)
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  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  18 
datatype locality = 
19 
General  Helper  Extensionality  Intro  Elim  Simp  Local  Assum  

20 
Chained 

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

21 

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

22 
datatype order = First_Order  Higher_Order 
42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

23 
datatype polymorphism = Polymorphic  Monomorphic  Mangled_Monomorphic 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

24 
datatype soundness = Unsound  Sound_Modulo_Infiniteness  Sound 
42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

25 
datatype type_level = 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

26 
All_Types  
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

27 
Noninf_Nonmono_Types of soundness  
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

28 
Fin_Nonmono_Types  
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

29 
Const_Arg_Types  
43362  30 
No_Types 
44402  31 
datatype type_uniformity = Uniform  Nonuniform 
42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

32 

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

33 
datatype type_enc = 
43624
de026aecab9b
cleaner handling of higherorder simple types, so that it's also possible to use firstorder simple types with LEOII and company
blanchet
parents:
43623
diff
changeset

34 
Simple_Types of order * type_level  
44402  35 
Guards of polymorphism * type_level * type_uniformity  
36 
Tags of polymorphism * type_level * type_uniformity 

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

37 

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

38 
val no_lambdasN : string 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

39 
val concealedN : string 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

40 
val liftingN : string 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

41 
val combinatorsN : string 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

42 
val hybridN : string 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

43 
val lambdasN : string 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

44 
val smartN : string 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

45 
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

46 
val schematic_var_prefix : string 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

47 
val fixed_var_prefix : string 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

48 
val tvar_prefix : string 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

49 
val tfree_prefix : string 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

50 
val const_prefix : string 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

51 
val type_const_prefix : string 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

52 
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

53 
val polymorphic_free_prefix : string 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

54 
val skolem_const_prefix : string 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

55 
val old_skolem_const_prefix : string 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

56 
val new_skolem_const_prefix : string 
43125
ddf63baabdec
distinguish different kinds of typing informations in the fact name
blanchet
parents:
43121
diff
changeset

57 
val type_decl_prefix : string 
ddf63baabdec
distinguish different kinds of typing informations in the fact name
blanchet
parents:
43121
diff
changeset

58 
val sym_decl_prefix : string 
43989  59 
val guards_sym_formula_prefix : string 
44396
66b9b3fcd608
started cleaning up polymorphic monotonicitybased encodings, based on discussions with Nick Smallbone
blanchet
parents:
44394
diff
changeset

60 
val tags_sym_formula_prefix : string 
40204
da97d75e20e6
standardize on "fact" terminology (vs. "axiom" or "theorem") in Sledgehammer  but keep "Axiom" in the lowerlevel "ATP_Problem" module
blanchet
parents:
40145
diff
changeset

61 
val fact_prefix : string 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

62 
val conjecture_prefix : string 
42881
dbdfe2d5b6ab
automatically use "metisFT" when typed helpers are necessary
blanchet
parents:
42879
diff
changeset

63 
val helper_prefix : string 
43125
ddf63baabdec
distinguish different kinds of typing informations in the fact name
blanchet
parents:
43121
diff
changeset

64 
val class_rel_clause_prefix : string 
ddf63baabdec
distinguish different kinds of typing informations in the fact name
blanchet
parents:
43121
diff
changeset

65 
val arity_clause_prefix : string 
ddf63baabdec
distinguish different kinds of typing informations in the fact name
blanchet
parents:
43121
diff
changeset

66 
val tfree_clause_prefix : string 
42881
dbdfe2d5b6ab
automatically use "metisFT" when typed helpers are necessary
blanchet
parents:
42879
diff
changeset

67 
val typed_helper_suffix : string 
43125
ddf63baabdec
distinguish different kinds of typing informations in the fact name
blanchet
parents:
43121
diff
changeset

68 
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

69 
val type_tag_idempotence_helper_name : string 
42966
4e2d6c1e5392
more work on parsing LEOII proofs without lambdas
blanchet
parents:
42963
diff
changeset

70 
val predicator_name : string 
4e2d6c1e5392
more work on parsing LEOII proofs without lambdas
blanchet
parents:
42963
diff
changeset

71 
val app_op_name : string 
44396
66b9b3fcd608
started cleaning up polymorphic monotonicitybased encodings, based on discussions with Nick Smallbone
blanchet
parents:
44394
diff
changeset

72 
val type_guard_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

73 
val type_tag_name : string 
42962
3b50fdeb6cfc
started adding support for THF output (but no lambdas)
blanchet
parents:
42956
diff
changeset

74 
val simple_type_prefix : string 
43174  75 
val prefixed_predicator_name : string 
43130
d73fc2e55308
implemented missing hAPP and ti cases of new path finder
blanchet
parents:
43129
diff
changeset

76 
val prefixed_app_op_name : string 
d73fc2e55308
implemented missing hAPP and ti cases of new path finder
blanchet
parents:
43129
diff
changeset

77 
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

78 
val ascii_of : string > string 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

79 
val unascii_of : string > string 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

80 
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

81 
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

82 
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

83 
val invert_const : string > string 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

84 
val unproxify_const : string > string 
43093  85 
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

86 
val atp_irrelevant_consts : string list 
69375eaa9016
more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents:
43222
diff
changeset

87 
val atp_schematic_consts_of : term > typ list Symtab.table 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

88 
val type_enc_from_string : soundness > 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

89 
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

90 
val polymorphism_of_type_enc : type_enc > polymorphism 
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

91 
val level_of_type_enc : type_enc > type_level 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

92 
val is_type_enc_quasi_sound : type_enc > bool 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

93 
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

94 
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

95 
val mk_aconns : 
cf5cda219058
handle lightweight tags sym theorems gracefully in the presence of TVars with interesting type classes
blanchet
parents:
43130
diff
changeset

96 
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 firstorder)
nik
parents:
43628
diff
changeset

97 
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

98 
val unmangled_const_name : string > string 
43194  99 
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

100 
val factsN : string 
40059
6ad9081665db
use consistent terminology in Sledgehammer: "prover = ATP or SMT solver or ..."
blanchet
parents:
39975
diff
changeset

101 
val prepare_atp_problem : 
44394
20bd9f90accc
added option to control soundness of encodings more precisely, for evaluation purposes
blanchet
parents:
44393
diff
changeset

102 
Proof.context > format > formula_kind > formula_kind > type_enc 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

103 
> bool > string > bool > bool > term list > term 
44088
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

104 
> ((string * locality) * term) list 
42541
8938507b2054
move type declarations to the front, for TFFcompliance
blanchet
parents:
42540
diff
changeset

105 
> string problem * string Symtab.table * int * int 
43214  106 
* (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

107 
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

108 
end; 
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 
structure ATP_Translate : ATP_TRANSLATE = 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

111 
struct 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

112 

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

113 
open ATP_Util 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

114 
open ATP_Problem 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

115 

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

116 
type name = string * string 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

117 

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

118 
val no_lambdasN = "no_lambdas" 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

119 
val concealedN = "concealed" 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

120 
val liftingN = "lifting" 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

121 
val combinatorsN = "combinators" 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

122 
val hybridN = "hybrid" 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

123 
val lambdasN = "lambdas" 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

124 
val smartN = "smart" 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

125 

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

126 
val generate_info = false (* experimental *) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

127 

43693  128 
fun isabelle_info s = 
129 
if generate_info then SOME (ATerm ("[]", [ATerm ("isabelle_" ^ s, [])])) 

130 
else NONE 

42879  131 

43693  132 
val introN = "intro" 
133 
val elimN = "elim" 

134 
val simpN = "simp" 

42879  135 

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

136 
val bound_var_prefix = "B_" 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

137 
val schematic_var_prefix = "V_" 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

138 
val fixed_var_prefix = "v_" 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

139 
val tvar_prefix = "T_" 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

140 
val tfree_prefix = "t_" 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

141 
val const_prefix = "c_" 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

142 
val type_const_prefix = "tc_" 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

143 
val class_prefix = "cl_" 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

144 

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

145 
val polymorphic_free_prefix = "poly_free" 
43907
073ab5379842
pass type arguments to lambdalifted Frees, to account for polymorphism
blanchet
parents:
43906
diff
changeset

146 

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

147 
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

148 
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

149 
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

150 

42998
1c80902d0456
fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents:
42994
diff
changeset

151 
val type_decl_prefix = "ty_" 
1c80902d0456
fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents:
42994
diff
changeset

152 
val sym_decl_prefix = "sy_" 
43989  153 
val guards_sym_formula_prefix = "gsy_" 
44396
66b9b3fcd608
started cleaning up polymorphic monotonicitybased encodings, based on discussions with Nick Smallbone
blanchet
parents:
44394
diff
changeset

154 
val tags_sym_formula_prefix = "tsy_" 
40204
da97d75e20e6
standardize on "fact" terminology (vs. "axiom" or "theorem") in Sledgehammer  but keep "Axiom" in the lowerlevel "ATP_Problem" module
blanchet
parents:
40145
diff
changeset

155 
val fact_prefix = "fact_" 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

156 
val conjecture_prefix = "conj_" 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

157 
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

158 
val class_rel_clause_prefix = "clar_" 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

159 
val arity_clause_prefix = "arity_" 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

160 
val tfree_clause_prefix = "tfree_" 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

161 

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

162 
val lambda_fact_prefix = "ATP.lambda_" 
42881
dbdfe2d5b6ab
automatically use "metisFT" when typed helpers are necessary
blanchet
parents:
42879
diff
changeset

163 
val typed_helper_suffix = "_T" 
dbdfe2d5b6ab
automatically use "metisFT" when typed helpers are necessary
blanchet
parents:
42879
diff
changeset

164 
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

165 
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

166 

42966
4e2d6c1e5392
more work on parsing LEOII proofs without lambdas
blanchet
parents:
42963
diff
changeset

167 
val predicator_name = "hBOOL" 
4e2d6c1e5392
more work on parsing LEOII proofs without lambdas
blanchet
parents:
42963
diff
changeset

168 
val app_op_name = "hAPP" 
44396
66b9b3fcd608
started cleaning up polymorphic monotonicitybased encodings, based on discussions with Nick Smallbone
blanchet
parents:
44394
diff
changeset

169 
val type_guard_name = "g" 
66b9b3fcd608
started cleaning up polymorphic monotonicitybased encodings, based on discussions with Nick Smallbone
blanchet
parents:
44394
diff
changeset

170 
val type_tag_name = "t" 
42962
3b50fdeb6cfc
started adding support for THF output (but no lambdas)
blanchet
parents:
42956
diff
changeset

171 
val simple_type_prefix = "ty_" 
42531
a462dbaa584f
added more rudimentary type support to Sledgehammer's ATP encoding
blanchet
parents:
42530
diff
changeset

172 

43174  173 
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

174 
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

175 
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

176 

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

177 
(* 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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

178 
val atp_weak_prefix = "ATP:" 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

179 

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

180 
(*Escaping of special characters. 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

181 
Alphanumeric characters are left unchanged. 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

182 
The character _ goes to __ 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

183 
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

184 
Other characters go to _nnn where nnn is the decimal ASCII code.*) 
43093  185 
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

186 

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

187 
fun stringN_of_int 0 _ = "" 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

188 
 stringN_of_int k n = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

189 
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

190 

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

191 
fun ascii_of_char c = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

192 
if Char.isAlphaNum c then 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

193 
String.str c 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

194 
else if c = #"_" then 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

195 
"__" 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

196 
else if #" " <= c andalso c <= #"/" then 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

197 
"_" ^ 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

198 
else 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

199 
(* fixed width, in case more digits follow *) 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

200 
"_" ^ stringN_of_int 3 (Char.ord c) 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

201 

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

202 
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

203 

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

204 
(** 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

205 

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

206 
(* 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

207 
thread. Also, the errors are impossible. *) 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

208 
val unascii_of = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

209 
let 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

210 
fun un rcs [] = String.implode(rev rcs) 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

211 
 un rcs [#"_"] = un (#"_" :: rcs) [] (* ERROR *) 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

212 
(* 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

213 
 un rcs (#"_" :: #"_" :: cs) = un (#"_" :: rcs) cs 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

214 
 un rcs (#"_" :: c :: cs) = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

215 
if #"A" <= c andalso c<= #"P" then 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

216 
(* translation of #" " to #"/" *) 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

217 
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

218 
else 
43496
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

219 
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

220 
case Int.fromString (String.implode digits) of 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

221 
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

222 
 NONE => un (c :: #"_" :: rcs) cs (* ERROR *) 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

223 
end 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

224 
 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

225 
in un [] o String.explode end 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

226 

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

227 
(* 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

228 
unASCII'd. *) 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

229 
fun strip_prefix_and_unascii s1 s = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

230 
if String.isPrefix s1 s then 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

231 
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

232 
else 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

233 
NONE 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

234 

43159
29b55f292e0b
added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents:
43139
diff
changeset

235 
val proxy_table = 
29b55f292e0b
added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents:
43139
diff
changeset

236 
[("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

237 
("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

238 
("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

239 
("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

240 
("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

241 
("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

242 
("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

243 
("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

244 
("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

245 
("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

246 
("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

247 
("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

248 
("equal", (@{const_name HOL.eq}, (@{thm fequal_def}, 
43678  249 
("fequal", @{const_name ATP.fequal})))), 
250 
("c_All", (@{const_name All}, (@{thm fAll_def}, 

251 
("fAll", @{const_name ATP.fAll})))), 

252 
("c_Ex", (@{const_name Ex}, (@{thm fEx_def}, 

253 
("fEx", @{const_name ATP.fEx}))))] 

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

254 

43159
29b55f292e0b
added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents:
43139
diff
changeset

255 
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

256 

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

257 
(* 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

258 
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

259 
val const_trans_table = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

260 
[(@{type_name Product_Type.prod}, "prod"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

261 
(@{type_name Sum_Type.sum}, "sum"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

262 
(@{const_name False}, "False"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

263 
(@{const_name True}, "True"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

264 
(@{const_name Not}, "Not"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

265 
(@{const_name conj}, "conj"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

266 
(@{const_name disj}, "disj"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

267 
(@{const_name implies}, "implies"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

268 
(@{const_name HOL.eq}, "equal"), 
43678  269 
(@{const_name All}, "All"), 
270 
(@{const_name Ex}, "Ex"), 

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

271 
(@{const_name If}, "If"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

272 
(@{const_name Set.member}, "member"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

273 
(@{const_name Meson.COMBI}, "COMBI"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

274 
(@{const_name Meson.COMBK}, "COMBK"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

275 
(@{const_name Meson.COMBB}, "COMBB"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

276 
(@{const_name Meson.COMBC}, "COMBC"), 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

277 
(@{const_name Meson.COMBS}, "COMBS")] 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

278 
> Symtab.make 
43159
29b55f292e0b
added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents:
43139
diff
changeset

279 
> 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

280 

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

281 
(* 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

282 
val const_trans_table_inv = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

283 
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

284 
val const_trans_table_unprox = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

285 
Symtab.empty 
43159
29b55f292e0b
added support for helpers in new Metis, so far only for polymorphic type encodings
blanchet
parents:
43139
diff
changeset

286 
> 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

287 

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

288 
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

289 
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

290 

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

291 
fun lookup_const c = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

292 
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

293 
SOME c' => c' 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

294 
 NONE => ascii_of c 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

295 

43622  296 
fun ascii_of_indexname (v, 0) = ascii_of v 
297 
 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

298 

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

299 
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

300 
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

301 
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

302 

43622  303 
fun make_schematic_type_var (x, i) = 
304 
tvar_prefix ^ (ascii_of_indexname (unprefix "'" x, i)) 

305 
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

306 

43622  307 
(* "HOL.eq" is mapped to the ATP's equality. *) 
308 
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

309 
 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

310 

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

311 
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

312 

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

313 
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

314 

43093  315 
fun new_skolem_var_name_from_const s = 
316 
let val ss = s > space_explode Long_Name.separator in 

317 
nth ss (length ss  2) 

318 
end 

319 

43248
69375eaa9016
more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents:
43222
diff
changeset

320 
(* 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

321 
handled specially via "fFalse", "fTrue", ..., "fequal". *) 
69375eaa9016
more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents:
43222
diff
changeset

322 
val atp_irrelevant_consts = 
69375eaa9016
more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents:
43222
diff
changeset

323 
[@{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

324 
@{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

325 
@{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

326 

69375eaa9016
more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents:
43222
diff
changeset

327 
val atp_monomorph_bad_consts = 
69375eaa9016
more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents:
43222
diff
changeset

328 
atp_irrelevant_consts @ 
69375eaa9016
more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents:
43222
diff
changeset

329 
(* 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

330 
higherorder places) but not by the monomorphizer. *) 
69375eaa9016
more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents:
43222
diff
changeset

331 
[@{const_name all}, @{const_name "==>"}, @{const_name "=="}, 
69375eaa9016
more suitable implementation of "schematic_consts_of" for monomorphizer, for ATPs
blanchet
parents:
43222
diff
changeset

332 
@{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

333 
@{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

334 

43258
956895f99904
slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents:
43248
diff
changeset

335 
fun add_schematic_const (x as (_, T)) = 
956895f99904
slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents:
43248
diff
changeset

336 
Monomorph.typ_has_tvars T ? Symtab.insert_list (op =) x 
956895f99904
slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents:
43248
diff
changeset

337 
val add_schematic_consts_of = 
956895f99904
slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents:
43248
diff
changeset

338 
Term.fold_aterms (fn Const (x as (s, _)) => 
956895f99904
slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents:
43248
diff
changeset

339 
not (member (op =) atp_monomorph_bad_consts s) 
956895f99904
slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents:
43248
diff
changeset

340 
? add_schematic_const x 
956895f99904
slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents:
43248
diff
changeset

341 
 _ => I) 
956895f99904
slightly faster/cleaner accumulation of polymorphic consts
blanchet
parents:
43248
diff
changeset

342 
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

343 

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

344 
(** 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

345 

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

346 
(* 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

347 
datatype type_literal = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

348 
TyLitVar of name * name  
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

349 
TyLitFree of name * name 
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 

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

352 
(** Isabelle arities **) 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

353 

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

354 
datatype arity_literal = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

355 
TConsLit of name * name * name list  
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

356 
TVarLit of name * name 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

357 

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

358 
fun gen_TVars 0 = [] 
43093  359 
 gen_TVars n = ("T_" ^ string_of_int n) :: gen_TVars (n1) 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

360 

43263  361 
val type_class = the_single @{sort type} 
362 

363 
fun add_packed_sort tvar = 

364 
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

365 

43086  366 
type arity_clause = 
43496
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

367 
{name : string, 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

368 
prem_lits : arity_literal list, 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

369 
concl_lits : arity_literal} 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

370 

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

371 
(* 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

372 
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

373 
let 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

374 
val tvars = gen_TVars (length args) 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

375 
val tvars_srts = ListPair.zip (tvars, args) 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

376 
in 
43086  377 
{name = name, 
43263  378 
prem_lits = [] > fold (uncurry add_packed_sort) tvars_srts > map TVarLit, 
43086  379 
concl_lits = TConsLit (`make_type_class cls, 
380 
`make_fixed_type_const tcons, 

381 
tvars ~~ tvars)} 

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

382 
end 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

383 

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

384 
fun arity_clause _ _ (_, []) = [] 
43495  385 
 arity_clause seen n (tcons, ("HOL.type", _) :: ars) = (* ignore *) 
386 
arity_clause seen n (tcons, ars) 

387 
 arity_clause seen n (tcons, (ar as (class, _)) :: ars) = 

388 
if member (op =) seen class then 

389 
(* multiple arities for the same (tycon, class) pair *) 

390 
make_axiom_arity_clause (tcons, 

391 
lookup_const tcons ^ "___" ^ ascii_of class ^ "_" ^ string_of_int n, 

392 
ar) :: 

393 
arity_clause seen (n + 1) (tcons, ars) 

394 
else 

395 
make_axiom_arity_clause (tcons, lookup_const tcons ^ "___" ^ 

396 
ascii_of class, ar) :: 

397 
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

398 

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

399 
fun multi_arity_clause [] = [] 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

400 
 multi_arity_clause ((tcons, ars) :: tc_arlists) = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

401 
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

402 

43622  403 
(* Generate all pairs (tycon, class, sorts) such that tycon belongs to class in 
404 
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

405 
fun type_class_pairs thy tycons classes = 
43093  406 
let 
407 
val alg = Sign.classes_of thy 

408 
fun domain_sorts tycon = Sorts.mg_domain alg tycon o single 

409 
fun add_class tycon class = 

410 
cons (class, domain_sorts tycon class) 

411 
handle Sorts.CLASS_ERROR _ => I 

412 
fun try_classes tycon = (tycon, fold (add_class tycon) classes []) 

413 
in map try_classes tycons end 

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

414 

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

415 
(*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

416 
fun iter_type_class_pairs _ _ [] = ([], []) 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

417 
 iter_type_class_pairs thy tycons classes = 
43263  418 
let 
419 
fun maybe_insert_class s = 

420 
(s <> type_class andalso not (member (op =) classes s)) 

421 
? insert (op =) s 

422 
val cpairs = type_class_pairs thy tycons classes 

423 
val newclasses = 

424 
[] > fold (fold (fold (fold maybe_insert_class) o snd) o snd) cpairs 

425 
val (classes', cpairs') = iter_type_class_pairs thy tycons newclasses 

43266  426 
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

427 

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

428 
fun make_arity_clauses thy tycons = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

429 
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

430 

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

431 

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

432 
(** Isabelle class relations **) 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

433 

43086  434 
type class_rel_clause = 
43496
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

435 
{name : string, 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

436 
subclass : name, 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

437 
superclass : name} 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

438 

43622  439 
(* Generate all pairs (sub, super) such that sub is a proper subclass of super 
440 
in theory "thy". *) 

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

441 
fun class_pairs _ [] _ = [] 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

442 
 class_pairs thy subs supers = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

443 
let 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

444 
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

445 
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

446 
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

447 
in fold add_supers subs [] end 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

448 

43622  449 
fun make_class_rel_clause (sub, super) = 
450 
{name = sub ^ "_" ^ super, subclass = `make_type_class sub, 

43086  451 
superclass = `make_type_class super} 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

452 

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

453 
fun make_class_rel_clauses thy subs supers = 
43093  454 
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

455 

43859  456 
(* intermediate terms *) 
457 
datatype iterm = 

458 
IConst of name * typ * typ list  

459 
IVar of name * typ  

460 
IApp of iterm * iterm  

461 
IAbs of (name * typ) * iterm 

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

462 

43859  463 
fun ityp_of (IConst (_, T, _)) = T 
464 
 ityp_of (IVar (_, T)) = T 

465 
 ityp_of (IApp (t1, _)) = snd (dest_funT (ityp_of t1)) 

466 
 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

467 

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

468 
(*gets the head of a combinator application, along with the list of arguments*) 
43859  469 
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

470 
let 
43859  471 
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

472 
 stripc x = x 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

473 
in stripc (u, []) end 
43085
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

474 

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

475 
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

476 

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

477 
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

478 
[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

479 
> space_implode Long_Name.separator 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

480 

43859  481 
(* Converts an Isabelle/HOL term (with combinators) into an intermediate term. 
482 
Also accumulates sort infomation. *) 

483 
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

484 
let 
43859  485 
val (P', P_atomics_Ts) = iterm_from_term thy bs P 
486 
val (Q', Q_atomics_Ts) = iterm_from_term thy bs Q 

487 
in (IApp (P', Q'), union (op =) P_atomics_Ts Q_atomics_Ts) end 

488 
 iterm_from_term thy _ (Const (c, T)) = 

43907
073ab5379842
pass type arguments to lambdalifted Frees, to account for polymorphism
blanchet
parents:
43906
diff
changeset

489 
(IConst (`make_fixed_const c, T, 
073ab5379842
pass type arguments to lambdalifted Frees, to account for polymorphism
blanchet
parents:
43906
diff
changeset

490 
if String.isPrefix old_skolem_const_prefix c then 
073ab5379842
pass type arguments to lambdalifted Frees, to account for polymorphism
blanchet
parents:
43906
diff
changeset

491 
[] > Term.add_tvarsT T > map TVar 
073ab5379842
pass type arguments to lambdalifted Frees, to account for polymorphism
blanchet
parents:
43906
diff
changeset

492 
else 
073ab5379842
pass type arguments to lambdalifted Frees, to account for polymorphism
blanchet
parents:
43906
diff
changeset

493 
(c, T) > Sign.const_typargs thy), 
073ab5379842
pass type arguments to lambdalifted Frees, to account for polymorphism
blanchet
parents:
43906
diff
changeset

494 
atyps_of T) 
073ab5379842
pass type arguments to lambdalifted Frees, to account for polymorphism
blanchet
parents:
43906
diff
changeset

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

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

497 
if String.isPrefix polymorphic_free_prefix s then [T] else []), 
43907
073ab5379842
pass type arguments to lambdalifted Frees, to account for polymorphism
blanchet
parents:
43906
diff
changeset

498 
atyps_of T) 
43859  499 
 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

500 
(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

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

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

503 
val s' = new_skolem_const_name s (length Ts) 
43859  504 
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

505 
else 
43859  506 
IVar ((make_schematic_var v, s), T), atyps_of T) 
507 
 iterm_from_term _ bs (Bound j) = 

508 
nth bs j > (fn (s, T) => (IConst (`make_bound_var s, T, []), atyps_of T)) 

509 
 iterm_from_term thy bs (Abs (s, T, t)) = 

43678  510 
let 
511 
fun vary s = s > AList.defined (op =) bs s ? vary o Symbol.bump_string 

512 
val s = vary s 

43859  513 
val (tm, atomic_Ts) = iterm_from_term thy ((s, T) :: bs) t 
43678  514 
in 
43859  515 
(IAbs ((`make_bound_var s, T), tm), 
43677  516 
union (op =) atomic_Ts (atyps_of T)) 
517 
end 

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

518 

43421  519 
datatype locality = 
520 
General  Helper  Extensionality  Intro  Elim  Simp  Local  Assum  

521 
Chained 

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

522 

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

523 
datatype order = First_Order  Higher_Order 
42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

524 
datatype polymorphism = Polymorphic  Monomorphic  Mangled_Monomorphic 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

525 
datatype soundness = Unsound  Sound_Modulo_Infiniteness  Sound 
42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

526 
datatype type_level = 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

527 
All_Types  
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

528 
Noninf_Nonmono_Types of soundness  
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

529 
Fin_Nonmono_Types  
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

530 
Const_Arg_Types  
43362  531 
No_Types 
44402  532 
datatype type_uniformity = Uniform  Nonuniform 
42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

533 

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

534 
datatype type_enc = 
43624
de026aecab9b
cleaner handling of higherorder simple types, so that it's also possible to use firstorder simple types with LEOII and company
blanchet
parents:
43623
diff
changeset

535 
Simple_Types of order * type_level  
44402  536 
Guards of polymorphism * type_level * type_uniformity  
537 
Tags of polymorphism * type_level * type_uniformity 

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

538 

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

539 
fun try_unsuffixes ss s = 
e38590764c34
versions of ! and ? for the ASCIIchallenged Mirabelle
blanchet
parents:
42688
diff
changeset

540 
fold (fn s' => fn NONE => try (unsuffix s') s  some => some) ss NONE 
e38590764c34
versions of ! and ? for the ASCIIchallenged Mirabelle
blanchet
parents:
42688
diff
changeset

541 

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

542 
fun type_enc_from_string soundness s = 
42722  543 
(case try (unprefix "poly_") s of 
544 
SOME s => (SOME Polymorphic, s) 

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

545 
 NONE => 
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

546 
case try (unprefix "mono_") s of 
42722  547 
SOME s => (SOME Monomorphic, s) 
548 
 NONE => 

549 
case try (unprefix "mangled_") s of 

550 
SOME s => (SOME Mangled_Monomorphic, s) 

551 
 NONE => (NONE, s)) 

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

552 
> (fn s => 
43624
de026aecab9b
cleaner handling of higherorder simple types, so that it's also possible to use firstorder simple types with LEOII and company
blanchet
parents:
43623
diff
changeset

553 
(* "_query" and "_bang" are for the ASCIIchallenged Metis and 
de026aecab9b
cleaner handling of higherorder simple types, so that it's also possible to use firstorder simple types with LEOII and company
blanchet
parents:
43623
diff
changeset

554 
Mirabelle. *) 
42689
e38590764c34
versions of ! and ? for the ASCIIchallenged Mirabelle
blanchet
parents:
42688
diff
changeset

555 
case try_unsuffixes ["?", "_query"] s of 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

556 
SOME s => (Noninf_Nonmono_Types soundness, s) 
42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

557 
 NONE => 
42689
e38590764c34
versions of ! and ? for the ASCIIchallenged Mirabelle
blanchet
parents:
42688
diff
changeset

558 
case try_unsuffixes ["!", "_bang"] s of 
43362  559 
SOME s => (Fin_Nonmono_Types, s) 
42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

560 
 NONE => (All_Types, s)) 
42828  561 
> apsnd (fn s => 
44402  562 
case try (unsuffix "_uniform") s of 
563 
SOME s => (Uniform, s) 

564 
 NONE => (Nonuniform, s)) 

565 
> (fn (poly, (level, (uniformity, core))) => 

566 
case (core, (poly, level, uniformity)) of 

567 
("simple", (NONE, _, Nonuniform)) => 

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

568 
Simple_Types (First_Order, level) 
44402  569 
 ("simple_higher", (NONE, _, Nonuniform)) => 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

570 
(case level of 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

571 
Noninf_Nonmono_Types _ => raise Same.SAME 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

572 
 _ => Simple_Types (Higher_Order, level)) 
44402  573 
 ("guards", (SOME poly, _, _)) => Guards (poly, level, uniformity) 
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

574 
 ("tags", (SOME Polymorphic, _, _)) => 
44402  575 
Tags (Polymorphic, level, uniformity) 
576 
 ("tags", (SOME poly, _, _)) => Tags (poly, level, uniformity) 

577 
 ("args", (SOME poly, All_Types (* naja *), Nonuniform)) => 

578 
Guards (poly, Const_Arg_Types, Nonuniform) 

579 
 ("erased", (NONE, All_Types (* naja *), Nonuniform)) => 

580 
Guards (Polymorphic, No_Types, Nonuniform) 

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

581 
 _ => 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

582 
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 outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

583 

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

584 
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

585 
 is_type_enc_higher_order _ = false 
43624
de026aecab9b
cleaner handling of higherorder simple types, so that it's also possible to use firstorder simple types with LEOII and company
blanchet
parents:
43623
diff
changeset

586 

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

587 
fun polymorphism_of_type_enc (Simple_Types _) = Mangled_Monomorphic 
43989  588 
 polymorphism_of_type_enc (Guards (poly, _, _)) = poly 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

589 
 polymorphism_of_type_enc (Tags (poly, _, _)) = poly 
42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

590 

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

591 
fun level_of_type_enc (Simple_Types (_, level)) = level 
43989  592 
 level_of_type_enc (Guards (_, level, _)) = level 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

593 
 level_of_type_enc (Tags (_, level, _)) = level 
42828  594 

44402  595 
fun uniformity_of_type_enc (Simple_Types _) = Uniform 
596 
 uniformity_of_type_enc (Guards (_, _, uniformity)) = uniformity 

597 
 uniformity_of_type_enc (Tags (_, _, uniformity)) = uniformity 

42831
c9b0968484fb
more work on "shallow" encoding + adjustments to other encodings
blanchet
parents:
42830
diff
changeset

598 

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

599 
fun is_type_level_quasi_sound All_Types = true 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

600 
 is_type_level_quasi_sound (Noninf_Nonmono_Types _) = true 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

601 
 is_type_level_quasi_sound _ = false 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

602 
val is_type_enc_quasi_sound = 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

603 
is_type_level_quasi_sound o level_of_type_enc 
42613
23b13b1bd565
use strings to encode type systems in ATP module, to reduce the amount of outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

604 

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

605 
fun is_type_level_fairly_sound level = 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

606 
is_type_level_quasi_sound level orelse level = Fin_Nonmono_Types 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

607 
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 outofplace information and also to make it easier to print the type system used
blanchet
parents:
42612
diff
changeset

608 

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

609 
fun is_type_level_monotonicity_based (Noninf_Nonmono_Types _) = true 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

610 
 is_type_level_monotonicity_based Fin_Nonmono_Types = true 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

611 
 is_type_level_monotonicity_based _ = false 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

612 

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

613 
fun choose_format formats (Simple_Types (order, level)) = 
44235
85e9dad3c187
distinguish THF syntax with and without choice (Satallax vs. LEOII)
blanchet
parents:
44121
diff
changeset

614 
(case find_first is_format_thf formats of 
85e9dad3c187
distinguish THF syntax with and without choice (Satallax vs. LEOII)
blanchet
parents:
44121
diff
changeset

615 
SOME format => (format, Simple_Types (order, level)) 
85e9dad3c187
distinguish THF syntax with and without choice (Satallax vs. LEOII)
blanchet
parents:
44121
diff
changeset

616 
 NONE => 
85e9dad3c187
distinguish THF syntax with and without choice (Satallax vs. LEOII)
blanchet
parents:
44121
diff
changeset

617 
if member (op =) formats TFF then 
85e9dad3c187
distinguish THF syntax with and without choice (Satallax vs. LEOII)
blanchet
parents:
44121
diff
changeset

618 
(TFF, Simple_Types (First_Order, level)) 
85e9dad3c187
distinguish THF syntax with and without choice (Satallax vs. LEOII)
blanchet
parents:
44121
diff
changeset

619 
else 
44402  620 
choose_format formats (Guards (Mangled_Monomorphic, level, Uniform))) 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

621 
 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

622 
(case hd formats of 
1d46d85cd78b
make "prepare_atp_problem" more robust w.r.t. choice of type system
blanchet
parents:
43098
diff
changeset

623 
CNF_UEQ => 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

624 
(CNF_UEQ, case type_enc of 
43989  625 
Guards stuff => 
626 
(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

627 
stuff 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

628 
 _ => type_enc) 
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

629 
 format => (format, type_enc)) 
43101
1d46d85cd78b
make "prepare_atp_problem" more robust w.r.t. choice of type system
blanchet
parents:
43098
diff
changeset

630 

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

631 
fun lift_lambdas ctxt type_enc = 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

632 
map (close_form o Envir.eta_contract) #> rpair ctxt 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

633 
#> Lambda_Lifting.lift_lambdas 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

634 
(if polymorphism_of_type_enc type_enc = Polymorphic then 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

635 
SOME polymorphic_free_prefix 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

636 
else 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

637 
NONE) 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

638 
Lambda_Lifting.is_quantifier 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

639 
#> fst 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

640 

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

641 
fun intentionalize_def (Const (@{const_name All}, _) $ Abs (_, _, t)) = 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

642 
intentionalize_def t 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

643 
 intentionalize_def (Const (@{const_name HOL.eq}, _) $ t $ u) = 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

644 
let 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

645 
fun lam T t = Abs (Name.uu, T, t) 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

646 
val (head, args) = strip_comb t > rev 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

647 
val head_T = fastype_of head 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

648 
val n = length args 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

649 
val arg_Ts = head_T > binder_types > take n > rev 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

650 
val u = u > subst_atomic (args ~~ map Bound (0 upto n  1)) 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

651 
in HOLogic.eq_const head_T $ head $ fold lam arg_Ts u end 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

652 
 intentionalize_def t = t 
3693baa6befb
move lambdalifting code to ATP encoding, so it can be used by Metis
blanchet
parents:
44003
diff
changeset

653 

40114  654 
type translated_formula = 
43496
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

655 
{name : string, 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

656 
locality : locality, 
92f5a4c78b37
remove historical bloat  another benefit of merging Metis's and Sledgehammer's translations
blanchet
parents:
43495
diff
changeset

657 
kind : formula_kind, 
43859  658 
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

659 
atomic_types : typ list} 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

660 

43859  661 
fun update_iformula f ({name, locality, kind, iformula, atomic_types} 
662 
: translated_formula) = 

663 
{name = name, locality = locality, kind = kind, iformula = f iformula, 

42562  664 
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

665 

43859  666 
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

667 

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

668 
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

669 
let val T = get_T x in 
44399  670 
if exists (type_instance ctxt T o get_T) xs then xs 
671 
else x :: filter_out (type_generalization ctxt T o get_T) xs 

43064
b6e61d22fa61
made "explicit_apply" smarter  no need to force explicit applications in minimizer on all constants, better do it more fine granularly
blanchet
parents:
43039
diff
changeset

672 
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

673 

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

674 
(* 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

675 
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

676 
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

677 
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

678 
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

679 

42836  680 
fun should_drop_arg_type_args (Simple_Types _) = 
681 
false (* since TFF doesn't support overloading *) 

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

682 
 should_drop_arg_type_args type_enc = 
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

683 
level_of_type_enc type_enc = All_Types andalso 
44402  684 
uniformity_of_type_enc type_enc = Uniform 
42831
c9b0968484fb
more work on "shallow" encoding + adjustments to other encodings
blanchet
parents:
42830
diff
changeset

685 

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

686 
fun type_arg_policy type_enc s = 
43628
996b2022ff78
further repair "mangled_tags", now that tags are also mangled
blanchet
parents:
43626
diff
changeset

687 
if s = type_tag_name then 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

688 
(if polymorphism_of_type_enc type_enc = Mangled_Monomorphic then 
43623  689 
Mangled_Type_Args 
690 
else 

691 
Explicit_Type_Args) false 

43628
996b2022ff78
further repair "mangled_tags", now that tags are also mangled
blanchet
parents:
43626
diff
changeset

692 
else case type_enc of 
44402  693 
Tags (_, All_Types, Uniform) => No_Type_Args 
43628
996b2022ff78
further repair "mangled_tags", now that tags are also mangled
blanchet
parents:
43626
diff
changeset

694 
 _ => 
44398  695 
let val level = level_of_type_enc type_enc in 
696 
if level = No_Types orelse s = @{const_name HOL.eq} orelse 

697 
(s = app_op_name andalso level = Const_Arg_Types) then 

698 
No_Type_Args 

699 
else 

700 
should_drop_arg_type_args type_enc 

701 
> (if polymorphism_of_type_enc type_enc = Mangled_Monomorphic then 

702 
Mangled_Type_Args 

703 
else 

704 
Explicit_Type_Args) 

705 
end 

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

706 

43628
996b2022ff78
further repair "mangled_tags", now that tags are also mangled
blanchet
parents:
43626
diff
changeset

707 
(* Make literals for sorted type variables. *) 
43263  708 
fun generic_add_sorts_on_type (_, []) = I 
709 
 generic_add_sorts_on_type ((x, i), s :: ss) = 

710 
generic_add_sorts_on_type ((x, i), ss) 

711 
#> (if s = the_single @{sort HOL.type} then 

43093  712 
I 
713 
else if i = ~1 then 

43263  714 
insert (op =) (TyLitFree (`make_type_class s, `make_fixed_type_var x)) 
43093  715 
else 
43263  716 
insert (op =) (TyLitVar (`make_type_class s, 
717 
(make_schematic_type_var (x, i), x)))) 

718 
fun add_sorts_on_tfree (TFree (s, S)) = generic_add_sorts_on_type ((s, ~1), S) 

719 
 add_sorts_on_tfree _ = I 

720 
fun add_sorts_on_tvar (TVar z) = generic_add_sorts_on_type z 

721 
 add_sorts_on_tvar _ = I 

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

722 

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

723 
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

724 
[] > 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

725 

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

726 
fun mk_aconns c phis = 
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

727 
let val (phis', phi') = split_last phis in 
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

728 
fold_rev (mk_aconn c) phis' phi' 
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

729 
end 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

730 
fun mk_ahorn [] phi = phi 
42534
46e690db16b8
fake type declarations for fulltype args and mangled type encodings, so that type assumptions can be discharged
blanchet
parents:
42533
diff
changeset

731 
 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

732 
fun mk_aquant _ [] phi = phi 
413b56894f82
close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents:
42521
diff
changeset

733 
 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

734 
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

735 
 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

736 

42522
413b56894f82
close ATP formulas universally earlier, so that we can add type predicates
blanchet
parents:
42521
diff
changeset

737 
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

738 
let 
a5ee3b8e5a90
improve partially tagged encoding by adding a helper fact that coalesces consecutive "ti" tags
blanchet
parents:
41140
diff
changeset

739 
fun formula_vars bounds (AQuant (_, xs, phi)) = 
42526  740 
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

741 
 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

742 
 formula_vars bounds (AAtom tm) = 
42526  743 
union (op =) (atom_vars tm [] 
744 
> 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

745 
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

746 

43859  747 
fun iterm_vars (IApp (tm1, tm2)) = fold iterm_vars [tm1, tm2] 
748 
 iterm_vars (IConst _) = I 

749 
 iterm_vars (IVar (name, T)) = insert (op =) (name, SOME T) 

750 
 iterm_vars (IAbs (_, tm)) = iterm_vars tm 

751 
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

752 

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

753 
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 firstorder)
nik
parents:
43628
diff
changeset

754 
(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 firstorder)
nik
parents:
43628
diff
changeset

755 
? 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 firstorder)
nik
parents:
43628
diff
changeset

756 
 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 firstorder)
nik
parents:
43628
diff
changeset

757 
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

758 

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

759 
val homo_infinite_type_name = @{type_name ind} (* any infinite type *) 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

760 
val homo_infinite_type = Type (homo_infinite_type_name, []) 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

761 

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

762 
fun ho_term_from_typ format type_enc = 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

763 
let 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

764 
fun term (Type (s, Ts)) = 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

765 
ATerm (case (is_type_enc_higher_order type_enc, s) of 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

766 
(true, @{type_name bool}) => `I tptp_bool_type 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

767 
 (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

768 
 _ => if s = homo_infinite_type_name andalso 
44235
85e9dad3c187
distinguish THF syntax with and without choice (Satallax vs. LEOII)
blanchet
parents:
44121
diff
changeset

769 
is_format_typed format then 
43178
b5862142d378
use "" type only in THF and TFF  might cause strange failures if used in FOF or CNF, depending on how liberal the prover is
blanchet
parents:
43175
diff
changeset

770 
`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

771 
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

772 
`make_fixed_type_const s, 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

773 
map term Ts) 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

774 
 term (TFree (s, _)) = ATerm (`make_fixed_type_var s, []) 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

775 
 term (TVar ((x as (s, _)), _)) = 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

776 
ATerm ((make_schematic_type_var x, s), []) 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

777 
in term end 
42562  778 

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

779 
fun ho_term_for_type_arg format type_enc T = 
3b0b448b4d69
add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes firstorder)
nik
parents:
43628
diff
changeset

780 
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

781 

42562  782 
(* 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

783 
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

784 

42562  785 
fun generic_mangled_type_name f (ATerm (name, [])) = f name 
786 
 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

787 
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

788 
^ ")" 
43692  789 
 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

790 

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

791 
fun mangled_type format type_enc = 
66b9b3fcd608
started cleaning up polymorphic monotonicitybased encodings, based on discussions with Nick Smallbone
blanchet
parents:
44394
diff
changeset

792 
generic_mangled_type_name fst o ho_term_from_typ format type_enc 
66b9b3fcd608
started cleaning up polymorphic monotonicitybased encodings, based on discussions with Nick Smallbone
blanchet
parents:
44394
diff
changeset

793 

42998
1c80902d0456
fully support all type system encodings in typed formats (TFF, THF)
blanchet
parents:
42994
diff
changeset

794 
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

795 

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

796 
fun make_simple_type s = 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

797 
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

798 
s = tptp_individual_type then 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

799 
s 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

800 
else 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

801 
simple_type_prefix ^ ascii_of s 
0a2f5b86bdd7
first step in sharing more code between ATP and Metis translation
blanchet
parents:
43064
diff
changeset

802 

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

803 
fun ho_type_from_ho_term type_enc pred_sym ary = 
42963  804 
let 
805 
fun to_atype ty = 

806 
AType ((make_simple_type (generic_mangled_type_name fst ty), 

807 
generic_mangled_type_name snd ty)) 

808 
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

809 
fun to_fo 0 ty = if pred_sym then bool_atype else to_atype ty 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

810 
 to_fo ary (ATerm (_, tys)) = to_afun to_atype (to_fo (ary  1)) tys 
43692  811 
 to_fo _ _ = raise Fail "unexpected type abstraction" 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

812 
fun to_ho (ty as ATerm ((s, _), tys)) = 
43676
3b0b448b4d69
add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes firstorder)
nik
parents:
43628
diff
changeset

813 
if s = tptp_fun_type then to_afun to_ho to_ho tys else to_atype ty 
3b0b448b4d69
add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes firstorder)
nik
parents:
43628
diff
changeset

814 
 to_ho _ = raise Fail "unexpected type abstraction" 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

815 
in if is_type_enc_higher_order type_enc then to_ho else to_fo ary end 
42963  816 

43677  817 
fun ho_type_from_typ format type_enc pred_sym ary = 
43676
3b0b448b4d69
add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes firstorder)
nik
parents:
43628
diff
changeset

818 
ho_type_from_ho_term type_enc pred_sym ary 
3b0b448b4d69
add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes firstorder)
nik
parents:
43628
diff
changeset

819 
o ho_term_from_typ format type_enc 
42963  820 

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

821 
fun mangled_const_name format type_enc T_args (s, s') = 
42963  822 
let 
43676
3b0b448b4d69
add support for lambdas in TPTP THF generator + killed an unsound type encoding (because the monotonicity calculus assumes firstorder)
nik
parents:
43628
diff
changeset

823 
val ty_args = T_args > map_filter (ho_term_for_type_arg format type_enc) 
42963  824 
fun type_suffix f g = 
825 
fold_rev (curry (op ^) o g o prefix mangled_type_sep 

826 
o generic_mangled_type_name f) ty_args "" 

827 
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

828 

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 
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

830 
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

831 

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 
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

833 
(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

834 
 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

835 
[] >> 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

836 
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

837 
(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

838 

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 
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

840 
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

841 
> 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

842 
(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

843 
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

844 
> 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

845 

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

846 
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

847 
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

848 
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

849 
(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

850 
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

851 

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

852 
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

853 
let 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

854 
fun tweak_ho_quant ho_quant T [IAbs _] = IConst (`I ho_quant, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

855 
 tweak_ho_quant ho_quant (T as Type (_, [p_T as Type (_, [x_T, _]), _])) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

856 
_ = 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

857 
(* Etaexpand "!!" and "??", to work around LEOII 1.2.8 parser 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

858 
limitation. This works in conjuction with special code in 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

859 
"ATP_Problem" that uses the syntactic sugar "!" and "?" whenever 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

860 
possible. *) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

861 
IAbs ((`I "P", p_T), 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

862 
IApp (IConst (`I ho_quant, T, []), 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

863 
IAbs ((`I "X", x_T), 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

864 
IApp (IConst (`I "P", p_T, []), 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

865 
IConst (`I "X", x_T, []))))) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

866 
 tweak_ho_quant _ _ _ = raise Fail "unexpected type for quantifier" 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

867 
fun intro top_level args (IApp (tm1, tm2)) = 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

868 
IApp (intro top_level (tm2 :: args) tm1, intro false [] tm2) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

869 
 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

870 
(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

871 
SOME proxy_base => 
43626
a867ebb12209
renamed "type_sys" to "type_enc", which is more accurate
blanchet
parents:
43624
diff
changeset

872 
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

873 
case (top_level, s) of 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

874 
(_, "c_False") => IConst (`I tptp_false, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

875 
 (_, "c_True") => IConst (`I tptp_true, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

876 
 (false, "c_Not") => IConst (`I tptp_not, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

877 
 (false, "c_conj") => IConst (`I tptp_and, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

878 
 (false, "c_disj") => IConst (`I tptp_or, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

879 
 (false, "c_implies") => IConst (`I tptp_implies, T, []) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

880 
 (false, "c_All") => tweak_ho_quant tptp_ho_forall T args 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

881 
 (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

882 
 (false, s) => 
44097  883 
if is_tptp_equal s andalso length args = 2 then 
884 
IConst (`I tptp_equal, T, []) 

885 
else 

886 
(* Use a proxy even for partially applied THF equality, because 

887 
the LEOII and Satallax parsers complain about not being 

888 
able to infer the type of "=". *) 

889 
IConst (proxy_base >> prefix const_prefix, T, T_args) 

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

890 
 _ => IConst (name, T, []) 
42569
5737947e4c77
make sure that fequal keeps its type arguments for mangled type systems
blanchet
parents:
42568
diff
changeset

891 
else 
43987
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

892 
IConst (proxy_base >> prefix const_prefix, T, T_args) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

893 
 NONE => IConst (name, T, T_args)) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

894 
 intro _ _ (IAbs (bound, tm)) = IAbs (bound, intro false [] tm) 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

895 
 intro _ _ tm = tm 
2850b7dc27a4
further worked around LEOII parser limitation, with etaexpansion
blanchet
parents:
43985
diff
changeset

896 
in intro true [] end 
42568
7b9801a34836
no needless "fequal" proxies if "explicit_apply" is set + always have readable names
blanchet
parents:
42566
diff
changeset

897 

43859  898 
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

899 
let 
42568
7b9801a34836
no needless "fequal" proxies if "explicit_apply" is set + always have readable names
blanchet
parents:
42566
diff
changeset

900 
fun do_term bs t atomic_types = 
43859  901 
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

902 
>> (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

903 
> union (op =) atomic_types 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

904 
fun do_quant bs q s T t' = 
43324
2b47822868e4
discontinued Name.variant to emphasize that this is oldstyle / indirect;
wenzelm
parents:
43304
diff
changeset

905 
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

906 
do_formula ((s, T) :: bs) t' 
42562  907 
#>> mk_aquant q [(`make_bound_var s, SOME T)] 
38518
54727b44e277
handle bound name conflicts gracefully in FOF translation
blanchet
parents:
38496
diff
changeset

908 
end 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

909 
and do_conn bs c t1 t2 = 
43198  910 
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

911 
and do_formula bs t = 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

912 
case t of 
43096  913 
@{const Trueprop} $ t1 => do_formula bs t1 
914 
 @{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

915 
 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

916 
do_quant bs AForall s T t' 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

917 
 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

918 
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

919 
 @{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

920 
 @{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

921 
 @{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

922 
 Const (@{const_name HOL.eq}, Type (_, [@{typ bool}, _])) $ t1 $ t2 => 
41140
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
blanchet
parents:
41138
diff
changeset

923 
if eq_as_iff then do_conn bs AIff t1 t2 else do_term bs t 
9c68004b8c9d
added Sledgehammer support for higherorder propositional reasoning
blanchet
parents:
41138
diff
changeset

924 
 _ => do_term bs t 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

925 
in do_formula [] end 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

926 

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

927 
fun presimplify_term _ [] t = t 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
blanchet
parents:
43263
diff
changeset

928 
 presimplify_term ctxt presimp_consts t = 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
blanchet
parents:
43263
diff
changeset

929 
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

930 
? (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

931 
#> Meson.presimplify ctxt 
a1a48c69d623
don't needlessly presimplify  makes ATP problem preparation much faster
blanchet
parents:
43263
diff
changeset

932 
#> prop_of) 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

933 

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

934 
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

935 
fun conceal_bounds Ts t = 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

936 
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

937 
(0 upto length Ts  1 ~~ Ts), t) 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

938 
fun reveal_bounds Ts = 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

939 
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

940 
(0 upto length Ts  1 ~~ Ts)) 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

941 

43265  942 
fun is_fun_equality (@{const_name HOL.eq}, 
943 
Type (_, [Type (@{type_name fun}, _), _])) = true 

944 
 is_fun_equality _ = false 

945 

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

946 
fun extensionalize_term ctxt t = 
43265  947 
if exists_Const is_fun_equality t then 
948 
let val thy = Proof_Context.theory_of ctxt in 

949 
t > cterm_of thy > Meson.extensionalize_conv ctxt 

950 
> prop_of > Logic.dest_equals > snd 

951 
end 

952 
else 

953 
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

954 

43862  955 
fun simple_translate_lambdas do_lambdas ctxt t = 
43863
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

956 
let val thy = Proof_Context.theory_of ctxt in 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

957 
if Meson.is_fol_term thy t then 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

958 
t 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

959 
else 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

960 
let 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

961 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

962 
case t of 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

963 
@{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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

964 
 (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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

965 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

966 
 (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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

967 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

968 
 (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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

969 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

970 
 (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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

971 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

972 
 (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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

973 
 (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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

974 
 (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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

975 
 (t0 as Const (@{const_name HOL.eq}, Type (_, [@{typ bool}, _]))) 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

976 
$ t1 $ t2 => 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

977 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

978 
 _ => 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

979 
if not (exists_subterm (fn Abs _ => true  _ => false) t) then t 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

980 
else t > Envir.eta_contract > do_lambdas ctxt Ts 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

981 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

982 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

983 
end 
43856
d636b053d4ff
move more lambdahandling logic to Sledgehammer, from ATP module, for formal dependency reasons
blanchet
parents:
43830
diff
changeset

984 

43997  985 
fun do_cheaply_conceal_lambdas Ts (t1 $ t2) = 
986 
do_cheaply_conceal_lambdas Ts t1 

987 
$ do_cheaply_conceal_lambdas Ts t2 

988 
 do_cheaply_conceal_lambdas Ts (Abs (_, T, t)) = 

989 
Free (polymorphic_free_prefix ^ serial_string (), 

990 
T > fastype_of1 (T :: Ts, t)) 

991 
 do_cheaply_conceal_lambdas _ t = t 

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

992 

43862  993 
fun do_introduce_combinators ctxt Ts t = 
42361  994 
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

995 
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

996 
> 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

997 
> 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

998 
> 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

999 
> 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

1000 
end 
43862  1001 
(* A type variable of sort "{}" will make abstraction fail. *) 
43997  1002 
handle THM _ => t > do_cheaply_conceal_lambdas Ts 
43862  1003 
val introduce_combinators = simple_translate_lambdas do_introduce_combinators 
1004 

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

1005 
fun preprocess_abstractions_in_terms trans_lambdas facts = 
43862  1006 
let 
43863
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1007 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1008 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1009 
>> map2 (fn (name, (kind, _)) => fn t => (name, (kind, t))) facts 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1010 
val lambda_facts = 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1011 
map2 (fn t => fn j => 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1012 
((lambda_fact_prefix ^ Int.toString j, Helper), (Axiom, t))) 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1013 
lambda_ts (1 upto length lambda_ts) 
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1014 
in (facts, lambda_facts) end 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1015 

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

1016 
(* 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

1017 
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

1018 
fun freeze_term t = 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1019 
let 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1020 
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

1021 
 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

1022 
 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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1023 
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

1024 
 aux t = t 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1025 
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

1026 

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

1027 
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

1028 
let 
42361  1029 
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

1030 
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

1031 
> transform_elim_prop 
41211
1e2e16bc0077
no need to do a superduper atomization if Metis fails afterwards anyway
blanchet
parents:
41199
diff
changeset

1032 
> Object_Logic.atomize_term thy 
42563  1033 
val need_trueprop = (fastype_of t = @{typ bool}) 
43096  1034 
in 
1035 
t > need_trueprop ? HOLogic.mk_Trueprop 

1036 
> Raw_Simplifier.rewrite_term thy (Meson.unfold_set_const_simps ctxt) [] 

1037 
> extensionalize_term ctxt 

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

1038 
> 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

1039 
> perhaps (try (HOLogic.dest_Trueprop)) 
43096  1040 
end 
1041 

1042 
(* making fact and conjecture formulas *) 

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

1043 
fun make_formula thy type_enc eq_as_iff name loc kind t = 
43096  1044 
let 
43859  1045 
val (iformula, atomic_types) = 
1046 
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

1047 
in 
43859  1048 
{name = name, locality = loc, kind = kind, iformula = iformula, 
42562  1049 
atomic_types = atomic_types} 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1050 
end 
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1051 

43860
57ef3cd4126e
more refactoring of preprocessing, so as to be able to centralize it
blanchet
parents:
43859
diff
changeset

1052 
fun make_fact ctxt format type_enc eq_as_iff ((name, loc), t) = 
43096  1053 
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

1054 
case t > make_formula thy type_enc (eq_as_iff andalso format <> CNF) name 
43624
de026aecab9b
cleaner handling of higherorder simple types, so that it's also possible to use firstorder simple types with LEOII and company
blanchet
parents:
43623
diff
changeset

1055 
loc Axiom of 
43859  1056 
formula as {iformula = AAtom (IConst ((s, _), _, _)), ...} => 
43096  1057 
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

1058 
 formula => SOME formula 
43096  1059 
end 
42561
23ddc4e3d19c
have properly typeinstantiated helper facts (combinators and If)
blanchet
parents:
42560
diff
changeset

1060 

43860
57ef3cd4126e
more refactoring of preprocessing, so as to be able to centralize it
blanchet
parents:
43859
diff
changeset

1061 
fun make_conjecture ctxt format type_enc ps = 
43096  1062 
let 
1063 
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

1064 
val last = length ps  1 
43096  1065 
in 
43863
a43d61270142
ensure that the lambda translation procedure is called only once with all the facts, which is necessary for soundness of lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1066 
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 lambdalifting (freshness of new names)
blanchet
parents:
43862
diff
changeset

1067 
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

1068 
> (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

1069 
(0 upto last) ps 
38613
4ca2cae2653f
use "hypothesis" rather than "conjecture" for hypotheses in TPTP format;
blanchet
parents:
38610
diff
changeset

1070 
end 
38282
319c59682c51
move Sledgehammer's HOL > FOL translation to separate file (sledgehammer_translate.ML)
blanchet
parents:
diff
changeset

1071 

42682
562046fd8e0c
added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFFtypes)
blanchet
parents:
42680
diff
changeset

1072 
(** 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/TFFtypes)
blanchet
parents:
42680
diff
changeset

1073 

44399  1074 
type monotonicity_info = 
1075 
{maybe_finite_Ts : typ list, 

1076 
surely_finite_Ts : typ list, 

1077 
maybe_infinite_Ts : typ list, 

1078 
surely_infinite_Ts : typ list, 

1079 
maybe_nonmono_Ts : typ list} 

1080 

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

1081 
(* These types witness that the type classes they belong to allow infinite 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

1082 
models and hence that any types with these type classes is monotonic. *) 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

1083 
val known_infinite_types = 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

1084 
[@{typ nat}, Type ("Int.int", []), @{typ "nat => bool"}] 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

1085 

44399  1086 
fun is_type_surely_infinite' ctxt soundness cached_Ts T = 
44397
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

1087 
(* Unlike virtually any other polymorphic fact whose type variables can be 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

1088 
instantiated by a known infinite type, extensionality actually encodes a 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

1089 
cardinality constraints. *) 
06375952f1fa
cleaner handling of polymorphic monotonicity inference
blanchet
parents:
44396
diff
changeset

1090 
soundness <> Sound andalso 
44399  1091 
is_type_surely_infinite ctxt (soundness = Unsound) cached_Ts T 
42886
208ec29cc013
improved "poly_preds_{bang,query}" by picking up good witnesses for the possible infinity of common type classes and ensuring that "?'a::type" doesn't ruin everything
blanchet
parents:
42885
diff
changeset

1092 

42682
562046fd8e0c
added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFFtypes)
blanchet
parents:
42680
diff
changeset

1093 
(* 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/TFFtypes)
blanchet
parents:
42680
diff
changeset

1094 
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/TFFtypes)
blanchet
parents:
42680
diff
changeset

1095 
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/TFFtypes)
blanchet
parents:
42680
diff
changeset

1096 
models in firstorder logic (via LĂ¶wenheimSkolem). *) 
562046fd8e0c
added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFFtypes)
blanchet
parents:
42680
diff
changeset

1097 

44399  1098 
fun should_encode_type _ (_ : monotonicity_info) All_Types _ = true 
1099 
 should_encode_type ctxt {maybe_finite_Ts, surely_infinite_Ts, 

1100 
maybe_nonmono_Ts, ...} 

1101 
(Noninf_Nonmono_Types soundness) T = 

1102 
exists (type_instance ctxt T) maybe_nonmono_Ts andalso 

1103 
not (exists (type_instance ctxt T) surely_infinite_Ts orelse 

1104 
(not (member (type_aconv ctxt) maybe_finite_Ts T) andalso 

1105 
is_type_surely_infinite' ctxt soundness surely_infinite_Ts T)) 

1106 
 should_encode_type ctxt {surely_finite_Ts, maybe_infinite_Ts, 

1107 
maybe_nonmono_Ts, ...} 

1108 
Fin_Nonmono_Types T = 

1109 
exists (type_instance ctxt T) maybe_nonmono_Ts andalso 

1110 
(exists (type_instance ctxt T) surely_finite_Ts orelse 

1111 
(not (member (type_aconv ctxt) maybe_infinite_Ts T) andalso 

1112 
is_type_surely_finite ctxt T)) 

42682
562046fd8e0c
added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFFtypes)
blanchet
parents:
42680
diff
changeset

1113 
 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/TFFtypes)
blanchet
parents:
42680
diff
changeset

1114 

44402  1115 
fun should_guard_type ctxt mono (Guards (_, level, uniformity)) should_guard_var 
44399  1116 
T = 
44402  1117 
(uniformity = Uniform orelse should_guard_var ()) andalso 
44399  1118 
should_encode_type ctxt mono level T 
1119 
 should_guard_type _ _ _ _ _ = false 

42682
562046fd8e0c
added type homogenization, whereby all (isomorphic) infinite types are mapped to the same type (to reduce the number of different predicates/TFFtypes)
blanchet
parents:
42680
diff
changeset

1120 

43859  1121 
fun is_var_or_bound_var (IConst ((s, _), _, _)) = 
42836  1122 
String.isPrefix bound_var_prefix s 
43859  1123 
 is_var_or_bound_var (IVar _) = true 
42836  1124 
 is_var_or_bound_var _ = false 
1125 

43361
e37b54d429f5
revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents:
43324
diff
changeset

1126 
datatype tag_site = 
e37b54d429f5
revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents:
43324
diff
changeset

1127 
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

1128 
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

1129 
Elsewhere 
42829
1558741f8a72
started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents:
42828
diff
changeset

1130 

43361
e37b54d429f5
revived the lightweight "poly_tags_{query,bang}" type encodings by fixing their soundness bug
blanchet
parents:
43324
diff
changeset

1131 
fun should_tag_with_type _ _ _ (Top_Level _) _ _ = false 
44402  1132 
 should_tag_with_type ctxt mono (Tags (_, level, uniformity)) site u T = 
1133 
(case uniformity of 

1134 
Uniform => should_encode_type ctxt mono level T 

1135 
 Nonuniform => 

42836  1136 
case (site, is_var_or_bound_var u) of 
44399  1137 
(Eq_Arg _, true) => should_encode_type ctxt mono level T 
42829
1558741f8a72
started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents:
42828
diff
changeset

1138 
 _ => false) 
1558741f8a72
started implementing "shallow" type systems, based on ideas by Claessen et al.
blanchet
parents:
42828
diff
changeset

1139 
 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/TFFtypes)
blanchet
parents:
42680
diff
changeset

1140 

44399  1141 
fun homogenized_type ctxt mono level = 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

1142 
let 
44399  1143 
val should_encode = should_encode_type ctxt mono level 
42994
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

1144 
fun homo 0 T = if should_encode T then T else homo_infinite_type 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

1145 
 homo ary (Type (@{type_name fun}, [T1, T2])) = 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

1146 
homo 0 T1 > homo (ary  1) T2 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

1147 
 homo _ _ = raise Fail "expected function type" 
fe291ab75eb5
towards supporting nonsimplytyped encodings for TFF and THF (for orthogonality and experiments)
blanchet
parents:
42966
diff
changeset

1148 
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/TFFtypes)
blanchet
parents:
42680
diff
changeset

1149 

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

1150 
(** "hBOOL" and "hAPP" **) 
41313
a96ac4d180b7
optionally supply constant weights to E  turned off by default until properly parameterized
blanchet
parents:
41211
diff
changeset

1151 

42574  1152 
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

1153 
{pred_sym : bool, min_ary : int, max_ary : int, types : typ list} 
42563  1154 

43859  1155 
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

1156 
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

1157 
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

1158 
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

1159 
fun iter ary T = 
44399  1160 
if ary = max_ary orelse type_instance ctxt var_T T orelse 
1161 
type_instance ctxt T var_T then 

43210
7384b771805d
made "explicit_apply"'s smart mode (more) complete
blanchet
parents:
43207
diff
changeset

1162< 