author | wenzelm |
Sat, 13 Oct 2007 17:16:41 +0200 | |
changeset 25018 | fac2ceba75b4 |
parent 24848 | 5dbbd33c3236 |
child 25497 | 1c9b3733f887 |
permissions | -rw-r--r-- |
11897 | 1 |
(* Title: Pure/Isar/object_logic.ML |
2 |
ID: $Id$ |
|
3 |
Author: Markus Wenzel, TU Muenchen |
|
4 |
||
5 |
Specifics about common object-logics. |
|
6 |
*) |
|
7 |
||
8 |
signature OBJECT_LOGIC = |
|
9 |
sig |
|
10 |
val add_judgment: bstring * string * mixfix -> theory -> theory |
|
11 |
val add_judgment_i: bstring * typ * mixfix -> theory -> theory |
|
16449 | 12 |
val judgment_name: theory -> string |
13 |
val is_judgment: theory -> term -> bool |
|
14 |
val drop_judgment: theory -> term -> term |
|
15 |
val fixed_judgment: theory -> string -> term |
|
18121 | 16 |
val ensure_propT: theory -> term -> term |
23586 | 17 |
val dest_judgment: cterm -> cterm |
23566
b65692d4adcd
replaced HOLogic.Trueprop_conv by ObjectLogic.judgment_conv;
wenzelm
parents:
23540
diff
changeset
|
18 |
val judgment_conv: conv -> conv |
19261 | 19 |
val is_elim: thm -> bool |
18728 | 20 |
val declare_atomize: attribute |
21 |
val declare_rulify: attribute |
|
16449 | 22 |
val atomize_term: theory -> term -> term |
23602
361e9c3a5e3a
tuned interfaces: atomize, atomize_prems, atomize_prems_tac;
wenzelm
parents:
23586
diff
changeset
|
23 |
val atomize: conv |
361e9c3a5e3a
tuned interfaces: atomize, atomize_prems, atomize_prems_tac;
wenzelm
parents:
23586
diff
changeset
|
24 |
val atomize_prems: conv |
361e9c3a5e3a
tuned interfaces: atomize, atomize_prems, atomize_prems_tac;
wenzelm
parents:
23586
diff
changeset
|
25 |
val atomize_prems_tac: int -> tactic |
12829 | 26 |
val full_atomize_tac: int -> tactic |
18807 | 27 |
val rulify_term: theory -> term -> term |
28 |
val rulify_tac: int -> tactic |
|
11897 | 29 |
val rulify: thm -> thm |
30 |
val rulify_no_asm: thm -> thm |
|
18728 | 31 |
val rule_format: attribute |
32 |
val rule_format_no_asm: attribute |
|
11897 | 33 |
end; |
34 |
||
35 |
structure ObjectLogic: OBJECT_LOGIC = |
|
36 |
struct |
|
37 |
||
38 |
||
18825 | 39 |
(** theory data **) |
11897 | 40 |
|
16449 | 41 |
structure ObjectLogicData = TheoryDataFun |
22846 | 42 |
( |
11897 | 43 |
type T = string option * (thm list * thm list); |
22846 | 44 |
val empty = (NONE, ([], [])); |
11897 | 45 |
val copy = I; |
16449 | 46 |
val extend = I; |
11897 | 47 |
|
15531 | 48 |
fun merge_judgment (SOME x, SOME y) = |
23586 | 49 |
if (x: string) = y then SOME x else error "Attempt to merge different object-logics" |
15973 | 50 |
| merge_judgment (j1, j2) = if is_some j1 then j1 else j2; |
11897 | 51 |
|
16449 | 52 |
fun merge _ ((judgment1, (atomize1, rulify1)), (judgment2, (atomize2, rulify2))) = |
11897 | 53 |
(merge_judgment (judgment1, judgment2), |
24039
273698405054
renamed Drule.add/del/merge_rules to Thm.add/del/merge_thms;
wenzelm
parents:
23602
diff
changeset
|
54 |
(Thm.merge_thms (atomize1, atomize2), Thm.merge_thms (rulify1, rulify2))); |
22846 | 55 |
); |
15801 | 56 |
|
11897 | 57 |
|
58 |
||
59 |
(** generic treatment of judgments -- with a single argument only **) |
|
60 |
||
18825 | 61 |
(* add judgment *) |
11897 | 62 |
|
63 |
local |
|
64 |
||
15531 | 65 |
fun new_judgment name (NONE, rules) = (SOME name, rules) |
66 |
| new_judgment _ (SOME _, _) = error "Attempt to redeclare object-logic judgment"; |
|
11897 | 67 |
|
16449 | 68 |
fun gen_add_judgment add_consts (bname, T, mx) thy = |
69 |
let val c = Sign.full_name thy (Syntax.const_name bname mx) in |
|
14226 | 70 |
thy |
16449 | 71 |
|> add_consts [(bname, T, mx)] |
25018
fac2ceba75b4
replaced obsolete Theory.add_finals_i by Theory.add_deps;
wenzelm
parents:
24848
diff
changeset
|
72 |
|> (fn thy' => Theory.add_deps c (c, Sign.the_const_type thy' c) [] thy') |
16449 | 73 |
|> ObjectLogicData.map (new_judgment c) |
14226 | 74 |
end; |
11897 | 75 |
|
76 |
in |
|
77 |
||
22796 | 78 |
val add_judgment = gen_add_judgment Sign.add_consts; |
79 |
val add_judgment_i = gen_add_judgment Sign.add_consts_i; |
|
11897 | 80 |
|
81 |
end; |
|
82 |
||
83 |
||
23566
b65692d4adcd
replaced HOLogic.Trueprop_conv by ObjectLogic.judgment_conv;
wenzelm
parents:
23540
diff
changeset
|
84 |
(* judgments *) |
11897 | 85 |
|
16449 | 86 |
fun judgment_name thy = |
87 |
(case ObjectLogicData.get thy of |
|
15531 | 88 |
(SOME name, _) => name |
11897 | 89 |
| _ => raise TERM ("Unknown object-logic judgment", [])); |
90 |
||
16449 | 91 |
fun is_judgment thy (Const (c, _) $ _) = c = judgment_name thy |
11897 | 92 |
| is_judgment _ _ = false; |
93 |
||
16449 | 94 |
fun drop_judgment thy (Abs (x, T, t)) = Abs (x, T, drop_judgment thy t) |
95 |
| drop_judgment thy (tm as (Const (c, _) $ t)) = |
|
96 |
if (c = judgment_name thy handle TERM _ => false) then t else tm |
|
11897 | 97 |
| drop_judgment _ tm = tm; |
98 |
||
16449 | 99 |
fun fixed_judgment thy x = |
11897 | 100 |
let (*be robust wrt. low-level errors*) |
16449 | 101 |
val c = judgment_name thy; |
24848 | 102 |
val aT = TFree (Name.aT, []); |
11897 | 103 |
val T = |
18939 | 104 |
the_default (aT --> propT) (Sign.const_type thy c) |
11897 | 105 |
|> Term.map_type_tvar (fn ((x, _), S) => TFree (x, S)); |
106 |
val U = Term.domain_type T handle Match => aT; |
|
107 |
in Const (c, T) $ Free (x, U) end; |
|
108 |
||
18121 | 109 |
fun ensure_propT thy t = |
13376 | 110 |
let val T = Term.fastype_of t |
16449 | 111 |
in if T = propT then t else Const (judgment_name thy, T --> propT) $ t end; |
13376 | 112 |
|
23586 | 113 |
fun dest_judgment ct = |
114 |
if is_judgment (Thm.theory_of_cterm ct) (Thm.term_of ct) |
|
115 |
then Thm.dest_arg ct |
|
116 |
else raise CTERM ("dest_judgment", [ct]); |
|
117 |
||
23566
b65692d4adcd
replaced HOLogic.Trueprop_conv by ObjectLogic.judgment_conv;
wenzelm
parents:
23540
diff
changeset
|
118 |
fun judgment_conv cv ct = |
b65692d4adcd
replaced HOLogic.Trueprop_conv by ObjectLogic.judgment_conv;
wenzelm
parents:
23540
diff
changeset
|
119 |
if is_judgment (Thm.theory_of_cterm ct) (Thm.term_of ct) |
b65692d4adcd
replaced HOLogic.Trueprop_conv by ObjectLogic.judgment_conv;
wenzelm
parents:
23540
diff
changeset
|
120 |
then Conv.arg_conv cv ct |
b65692d4adcd
replaced HOLogic.Trueprop_conv by ObjectLogic.judgment_conv;
wenzelm
parents:
23540
diff
changeset
|
121 |
else raise CTERM ("judgment_conv", [ct]); |
b65692d4adcd
replaced HOLogic.Trueprop_conv by ObjectLogic.judgment_conv;
wenzelm
parents:
23540
diff
changeset
|
122 |
|
11897 | 123 |
|
19261 | 124 |
(* elimination rules *) |
125 |
||
126 |
fun is_elim rule = |
|
127 |
let |
|
128 |
val thy = Thm.theory_of_thm rule; |
|
129 |
val concl = Thm.concl_of rule; |
|
130 |
in |
|
131 |
Term.is_Var (drop_judgment thy concl) andalso |
|
132 |
exists (fn prem => concl aconv Logic.strip_assums_concl prem) (Thm.prems_of rule) |
|
133 |
end; |
|
134 |
||
135 |
||
11897 | 136 |
|
137 |
(** treatment of meta-level connectives **) |
|
138 |
||
139 |
(* maintain rules *) |
|
140 |
||
16449 | 141 |
val get_atomize = #1 o #2 o ObjectLogicData.get; |
142 |
val get_rulify = #2 o #2 o ObjectLogicData.get; |
|
11897 | 143 |
|
24039
273698405054
renamed Drule.add/del/merge_rules to Thm.add/del/merge_thms;
wenzelm
parents:
23602
diff
changeset
|
144 |
val add_atomize = ObjectLogicData.map o apsnd o apfst o Thm.add_thm; |
273698405054
renamed Drule.add/del/merge_rules to Thm.add/del/merge_thms;
wenzelm
parents:
23602
diff
changeset
|
145 |
val add_rulify = ObjectLogicData.map o apsnd o apsnd o Thm.add_thm; |
11897 | 146 |
|
22846 | 147 |
val declare_atomize = Thm.declaration_attribute (fn th => Context.mapping (add_atomize th) I); |
148 |
val declare_rulify = Thm.declaration_attribute (fn th => Context.mapping (add_rulify th) I); |
|
149 |
||
150 |
val _ = Context.add_setup (add_rulify Drule.norm_hhf_eq); |
|
11897 | 151 |
|
152 |
||
153 |
(* atomize *) |
|
154 |
||
16449 | 155 |
fun atomize_term thy = |
156 |
drop_judgment thy o MetaSimplifier.rewrite_term thy (get_atomize thy) []; |
|
12729 | 157 |
|
23602
361e9c3a5e3a
tuned interfaces: atomize, atomize_prems, atomize_prems_tac;
wenzelm
parents:
23586
diff
changeset
|
158 |
fun atomize ct = |
361e9c3a5e3a
tuned interfaces: atomize, atomize_prems, atomize_prems_tac;
wenzelm
parents:
23586
diff
changeset
|
159 |
MetaSimplifier.rewrite true (get_atomize (Thm.theory_of_cterm ct)) ct; |
14743 | 160 |
|
23602
361e9c3a5e3a
tuned interfaces: atomize, atomize_prems, atomize_prems_tac;
wenzelm
parents:
23586
diff
changeset
|
161 |
fun atomize_prems ct = |
361e9c3a5e3a
tuned interfaces: atomize, atomize_prems, atomize_prems_tac;
wenzelm
parents:
23586
diff
changeset
|
162 |
if Logic.has_meta_prems (Thm.term_of ct) then |
24832 | 163 |
Conv.forall_conv ~1 (K (Conv.prems_conv ~1 atomize)) |
164 |
(ProofContext.init (Thm.theory_of_cterm ct)) ct |
|
23602
361e9c3a5e3a
tuned interfaces: atomize, atomize_prems, atomize_prems_tac;
wenzelm
parents:
23586
diff
changeset
|
165 |
else Conv.all_conv ct; |
11897 | 166 |
|
23602
361e9c3a5e3a
tuned interfaces: atomize, atomize_prems, atomize_prems_tac;
wenzelm
parents:
23586
diff
changeset
|
167 |
val atomize_prems_tac = CONVERSION atomize_prems; |
361e9c3a5e3a
tuned interfaces: atomize, atomize_prems, atomize_prems_tac;
wenzelm
parents:
23586
diff
changeset
|
168 |
val full_atomize_tac = CONVERSION atomize; |
11897 | 169 |
|
170 |
||
171 |
(* rulify *) |
|
172 |
||
18807 | 173 |
fun rulify_term thy = MetaSimplifier.rewrite_term thy (get_rulify thy) []; |
23540 | 174 |
fun rulify_tac i st = MetaSimplifier.rewrite_goal_tac (get_rulify (Thm.theory_of_thm st)) i st; |
18807 | 175 |
|
11897 | 176 |
fun gen_rulify full thm = |
21708 | 177 |
MetaSimplifier.simplify full (get_rulify (Thm.theory_of_thm thm)) thm |
20912 | 178 |
|> Drule.gen_all |> Thm.strip_shyps |> Drule.zero_var_indexes; |
11897 | 179 |
|
180 |
val rulify = gen_rulify true; |
|
181 |
val rulify_no_asm = gen_rulify false; |
|
182 |
||
18728 | 183 |
fun rule_format x = Thm.rule_attribute (fn _ => rulify) x; |
184 |
fun rule_format_no_asm x = Thm.rule_attribute (fn _ => rulify_no_asm) x; |
|
11897 | 185 |
|
186 |
end; |