author | haftmann |
Tue, 06 Dec 2005 09:04:09 +0100 | |
changeset 18358 | 0a733e11021a |
parent 17956 | 369e2af8ee45 |
child 18377 | 0e1d025d57b3 |
permissions | -rw-r--r-- |
4866 | 1 |
(* Title: HOL/Tools/typedef_package.ML |
2 |
ID: $Id$ |
|
16458 | 3 |
Author: Markus Wenzel and Stefan Berghofer, TU Muenchen |
4866 | 4 |
|
6357 | 5 |
Gordon/HOL-style type definitions. |
4866 | 6 |
*) |
7 |
||
8 |
signature TYPEDEF_PACKAGE = |
|
9 |
sig |
|
5697 | 10 |
val quiet_mode: bool ref |
5104 | 11 |
val add_typedecls: (bstring * string list * mixfix) list -> theory -> theory |
11827 | 12 |
val add_typedef: bool -> string option -> bstring * string list * mixfix -> |
11822 | 13 |
string -> (bstring * bstring) option -> tactic -> theory -> theory * |
14 |
{type_definition: thm, set_def: thm option, Rep: thm, Rep_inverse: thm, |
|
15 |
Abs_inverse: thm, Rep_inject: thm, Abs_inject: thm, Rep_cases: thm, Abs_cases: thm, |
|
16 |
Rep_induct: thm, Abs_induct: thm} |
|
11827 | 17 |
val add_typedef_i: bool -> string option -> bstring * string list * mixfix -> |
11822 | 18 |
term -> (bstring * bstring) option -> tactic -> theory -> theory * |
19 |
{type_definition: thm, set_def: thm option, Rep: thm, Rep_inverse: thm, |
|
20 |
Abs_inverse: thm, Rep_inject: thm, Abs_inject: thm, Rep_cases: thm, Abs_cases: thm, |
|
21 |
Rep_induct: thm, Abs_induct: thm} |
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17339 | 22 |
val typedef: (bool * string) * (bstring * string list * mixfix) * string |
23 |
* (string * string) option -> theory -> Proof.state |
|
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val typedef_i: (bool * string) * (bstring * string list * mixfix) * term |
|
25 |
* (string * string) option -> theory -> Proof.state |
|
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val setup: (theory -> theory) list |
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end; |
28 |
||
29 |
structure TypedefPackage: TYPEDEF_PACKAGE = |
|
30 |
struct |
|
31 |
||
32 |
||
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(** theory context references **) |
34 |
||
11608 | 35 |
val type_definitionN = "Typedef.type_definition"; |
10280 | 36 |
|
13413 | 37 |
val Rep = thm "type_definition.Rep"; |
38 |
val Rep_inverse = thm "type_definition.Rep_inverse"; |
|
39 |
val Abs_inverse = thm "type_definition.Abs_inverse"; |
|
40 |
val Rep_inject = thm "type_definition.Rep_inject"; |
|
41 |
val Abs_inject = thm "type_definition.Abs_inject"; |
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val Rep_cases = thm "type_definition.Rep_cases"; |
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val Abs_cases = thm "type_definition.Abs_cases"; |
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val Rep_induct = thm "type_definition.Rep_induct"; |
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val Abs_induct = thm "type_definition.Abs_induct"; |
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|
47 |
||
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||
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(** type declarations **) |
50 |
||
51 |
fun add_typedecls decls thy = |
|
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let |
|
53 |
fun arity_of (raw_name, args, mx) = |
|
54 |
(Sign.full_name thy (Syntax.type_name raw_name mx), |
|
55 |
replicate (length args) HOLogic.typeS, HOLogic.typeS); |
|
56 |
in |
|
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thy |
|
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|> Theory.add_typedecls decls |
|
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|> can (Theory.assert_super HOL.thy) ? Theory.add_arities_i (map arity_of decls) |
|
60 |
end; |
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61 |
||
62 |
||
63 |
||
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(** type definitions **) |
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||
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(* messages *) |
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||
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val quiet_mode = ref false; |
|
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fun message s = if ! quiet_mode then () else writeln s; |
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||
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||
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(* theory data *) |
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structure TypedefData = TheoryDataFun |
75 |
(struct |
|
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val name = "HOL/typedef"; |
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type T = (typ * typ * string * string) Symtab.table; |
|
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val empty = Symtab.empty; |
|
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val copy = I; |
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val extend = I; |
81 |
fun merge _ (tabs: T * T) = Symtab.merge (op =) tabs; |
|
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fun print _ _ = (); |
|
83 |
end); |
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15259 | 84 |
|
17280 | 85 |
fun put_typedef newT oldT Abs_name Rep_name = |
17412 | 86 |
TypedefData.map (Symtab.update_new (fst (dest_Type newT), (newT, oldT, Abs_name, Rep_name))); |
15259 | 87 |
|
88 |
||
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(* prepare_typedef *) |
90 |
||
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fun read_term thy used s = |
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#1 (Thm.read_def_cterm (thy, K NONE, K NONE) used true (s, HOLogic.typeT)); |
|
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|
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fun cert_term thy _ t = Thm.cterm_of thy t handle TERM (msg, _) => error msg; |
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|
96 |
fun err_in_typedef name = |
|
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error ("The error(s) above occurred in typedef " ^ quote name); |
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||
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fun prepare_typedef prep_term def name (t, vs, mx) raw_set opt_morphs thy = |
4866 | 100 |
let |
11608 | 101 |
val _ = Theory.requires thy "Typedef" "typedefs"; |
16458 | 102 |
val full = Sign.full_name thy; |
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|
104 |
(*rhs*) |
|
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val full_name = full name; |
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val cset = prep_term thy vs raw_set; |
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val {T = setT, t = set, ...} = Thm.rep_cterm cset; |
17280 | 108 |
val rhs_tfrees = Term.add_tfrees set []; |
109 |
val rhs_tfreesT = Term.add_tfreesT setT []; |
|
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val oldT = HOLogic.dest_setT setT handle TYPE _ => |
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error ("Not a set type: " ^ quote (Sign.string_of_typ thy setT)); |
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wenzelm
parents:
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fun mk_nonempty A = |
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HOLogic.mk_Trueprop (HOLogic.mk_exists ("x", oldT, HOLogic.mk_mem (Free ("x", oldT), A))); |
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parents:
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|
114 |
val goal = mk_nonempty set; |
17280 | 115 |
val goal_pat = mk_nonempty (Var (if_none (Syntax.read_variable name) (name, 0), setT)); |
4866 | 116 |
|
117 |
(*lhs*) |
|
17280 | 118 |
val defS = Sign.defaultS thy; |
119 |
val lhs_tfrees = map (fn v => (v, if_none (AList.lookup (op =) rhs_tfrees v) defS)) vs; |
|
120 |
val args_setT = lhs_tfrees |
|
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|> filter (member (op =) rhs_tfrees andf (not o member (op =) rhs_tfreesT)) |
|
122 |
|> map TFree; |
|
123 |
||
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val tname = Syntax.type_name t mx; |
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val full_tname = full tname; |
126 |
val newT = Type (full_tname, map TFree lhs_tfrees); |
|
4866 | 127 |
|
17280 | 128 |
val (Rep_name, Abs_name) = if_none opt_morphs ("Rep_" ^ name, "Abs_" ^ name); |
129 |
val setT' = map itselfT args_setT ---> setT; |
|
130 |
val setC = Term.list_comb (Const (full_name, setT'), map Logic.mk_type args_setT); |
|
10280 | 131 |
val RepC = Const (full Rep_name, newT --> oldT); |
132 |
val AbsC = Const (full Abs_name, oldT --> newT); |
|
4866 | 133 |
val x_new = Free ("x", newT); |
134 |
val y_old = Free ("y", oldT); |
|
10280 | 135 |
|
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val set' = if def then setC else set; |
4866 | 137 |
|
10280 | 138 |
val typedef_name = "type_definition_" ^ name; |
139 |
val typedefC = |
|
140 |
Const (type_definitionN, (newT --> oldT) --> (oldT --> newT) --> setT --> HOLogic.boolT); |
|
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parents:
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|
141 |
val typedef_prop = |
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|
142 |
Logic.mk_implies (goal, HOLogic.mk_Trueprop (typedefC $ RepC $ AbsC $ set')); |
4866 | 143 |
|
18358 | 144 |
fun add_def def def' thy = |
145 |
if def |
|
146 |
then |
|
147 |
thy |
|
148 |
|> PureThy.add_defs_i false [Thm.no_attributes def'] |
|
149 |
|-> (fn [def'] => pair (SOME def')) |
|
150 |
else |
|
151 |
(NONE, thy); |
|
152 |
||
11822 | 153 |
fun typedef_result (theory, nonempty) = |
6383 | 154 |
theory |
15259 | 155 |
|> put_typedef newT oldT (full Abs_name) (full Rep_name) |
6383 | 156 |
|> add_typedecls [(t, vs, mx)] |
157 |
|> Theory.add_consts_i |
|
17280 | 158 |
((if def then [(name, setT', NoSyn)] else []) @ |
6383 | 159 |
[(Rep_name, newT --> oldT, NoSyn), |
160 |
(Abs_name, oldT --> newT, NoSyn)]) |
|
18358 | 161 |
|> add_def def (Logic.mk_defpair (setC, set)) |
162 |
||>> (PureThy.add_axioms_i [((typedef_name, typedef_prop), |
|
163 |
[apsnd (fn cond_axm => Drule.standard (nonempty RS cond_axm))])] #> Library.swap) |
|
164 |
||> Theory.add_finals_i false [RepC, AbsC] |
|
165 |
|-> (fn (set_def, [type_definition]) => fn theory' => |
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11822 | 166 |
let |
167 |
fun make th = Drule.standard (th OF [type_definition]); |
|
168 |
val (theory'', [Rep, Rep_inverse, Abs_inverse, Rep_inject, Abs_inject, |
|
169 |
Rep_cases, Abs_cases, Rep_induct, Abs_induct]) = |
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12338
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|
170 |
theory' |
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|
171 |
|> Theory.add_path name |
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|
172 |
|> PureThy.add_thms |
11822 | 173 |
([((Rep_name, make Rep), []), |
174 |
((Rep_name ^ "_inverse", make Rep_inverse), []), |
|
175 |
((Abs_name ^ "_inverse", make Abs_inverse), []), |
|
176 |
((Rep_name ^ "_inject", make Rep_inject), []), |
|
177 |
((Abs_name ^ "_inject", make Abs_inject), []), |
|
178 |
((Rep_name ^ "_cases", make Rep_cases), |
|
179 |
[RuleCases.case_names [Rep_name], InductAttrib.cases_set_global full_name]), |
|
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((Abs_name ^ "_cases", make Abs_cases), |
|
181 |
[RuleCases.case_names [Abs_name], InductAttrib.cases_type_global full_tname]), |
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182 |
((Rep_name ^ "_induct", make Rep_induct), |
|
183 |
[RuleCases.case_names [Rep_name], InductAttrib.induct_set_global full_name]), |
|
184 |
((Abs_name ^ "_induct", make Abs_induct), |
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12338
de0f4a63baa5
renamed class "term" to "type" (actually "HOL.type");
wenzelm
parents:
12043
diff
changeset
|
185 |
[RuleCases.case_names [Abs_name], InductAttrib.induct_type_global full_tname])]) |
de0f4a63baa5
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wenzelm
parents:
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diff
changeset
|
186 |
|>> Theory.parent_path; |
11822 | 187 |
val result = {type_definition = type_definition, set_def = set_def, |
188 |
Rep = Rep, Rep_inverse = Rep_inverse, Abs_inverse = Abs_inverse, |
|
189 |
Rep_inject = Rep_inject, Abs_inject = Abs_inject, Rep_cases = Rep_cases, |
|
190 |
Abs_cases = Abs_cases, Rep_induct = Rep_induct, Abs_induct = Abs_induct}; |
|
191 |
in ((theory'', type_definition), result) end); |
|
6383 | 192 |
|
4866 | 193 |
|
194 |
(* errors *) |
|
195 |
||
196 |
fun show_names pairs = commas_quote (map fst pairs); |
|
197 |
||
198 |
val illegal_vars = |
|
199 |
if null (term_vars set) andalso null (term_tvars set) then [] |
|
200 |
else ["Illegal schematic variable(s) on rhs"]; |
|
201 |
||
202 |
val dup_lhs_tfrees = |
|
203 |
(case duplicates lhs_tfrees of [] => [] |
|
204 |
| dups => ["Duplicate type variables on lhs: " ^ show_names dups]); |
|
205 |
||
206 |
val extra_rhs_tfrees = |
|
17280 | 207 |
(case fold (remove (op =)) lhs_tfrees rhs_tfrees of [] => [] |
4866 | 208 |
| extras => ["Extra type variables on rhs: " ^ show_names extras]); |
209 |
||
210 |
val illegal_frees = |
|
211 |
(case term_frees set of [] => [] |
|
212 |
| xs => ["Illegal variables on rhs: " ^ show_names (map dest_Free xs)]); |
|
213 |
||
214 |
val errs = illegal_vars @ dup_lhs_tfrees @ extra_rhs_tfrees @ illegal_frees; |
|
11426
f280d4b29a2c
abtract non-emptiness statements (no longer use Eps);
wenzelm
parents:
10697
diff
changeset
|
215 |
val _ = if null errs then () else error (cat_lines errs); |
f280d4b29a2c
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wenzelm
parents:
10697
diff
changeset
|
216 |
|
f280d4b29a2c
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|
217 |
(*test theory errors now!*) |
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parents:
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changeset
|
218 |
val test_thy = Theory.copy thy; |
11727
a27150cc8fa5
test: use SkipProof.make_thm instead of Thm.assume;
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diff
changeset
|
219 |
val _ = (test_thy, |
11822 | 220 |
setmp quick_and_dirty true (SkipProof.make_thm test_thy) goal) |> typedef_result; |
11426
f280d4b29a2c
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wenzelm
parents:
10697
diff
changeset
|
221 |
|
11822 | 222 |
in (cset, goal, goal_pat, typedef_result) end |
11426
f280d4b29a2c
abtract non-emptiness statements (no longer use Eps);
wenzelm
parents:
10697
diff
changeset
|
223 |
handle ERROR => err_in_typedef name; |
4866 | 224 |
|
225 |
||
6383 | 226 |
(* add_typedef interfaces *) |
4866 | 227 |
|
17339 | 228 |
local |
229 |
||
17922 | 230 |
fun gen_typedef prep_term def opt_name typ set opt_morphs tac thy = |
6383 | 231 |
let |
17922 | 232 |
val name = the_default (#1 typ) opt_name; |
11822 | 233 |
val (cset, goal, _, typedef_result) = |
234 |
prepare_typedef prep_term def name typ set opt_morphs thy; |
|
17922 | 235 |
val _ = message ("Proving non-emptiness of set " ^ quote (string_of_cterm cset) ^ " ..."); |
17956 | 236 |
val non_empty = Goal.prove thy [] [] goal (K tac) handle ERROR_MESSAGE msg => |
237 |
error (msg ^ "\nFailed to prove non-emptiness of " ^ quote (string_of_cterm cset)); |
|
11822 | 238 |
val ((thy', _), result) = (thy, non_empty) |> typedef_result; |
239 |
in (thy', result) end; |
|
4866 | 240 |
|
17339 | 241 |
in |
242 |
||
17922 | 243 |
val add_typedef = gen_typedef read_term; |
244 |
val add_typedef_i = gen_typedef cert_term; |
|
4866 | 245 |
|
17339 | 246 |
end; |
4866 | 247 |
|
17339 | 248 |
|
249 |
(* Isar typedef interface *) |
|
6383 | 250 |
|
17339 | 251 |
local |
252 |
||
253 |
fun gen_typedef prep_term ((def, name), typ, set, opt_morphs) thy = |
|
11822 | 254 |
let |
255 |
val (_, goal, goal_pat, att_result) = |
|
13443 | 256 |
prepare_typedef prep_term def name typ set opt_morphs thy; |
11822 | 257 |
val att = #1 o att_result; |
17339 | 258 |
in IsarThy.theorem_i Drule.internalK ("", [att]) (goal, ([goal_pat], [])) thy end; |
259 |
||
260 |
in |
|
6383 | 261 |
|
17339 | 262 |
val typedef = gen_typedef read_term; |
263 |
val typedef_i = gen_typedef cert_term; |
|
264 |
||
265 |
end; |
|
6357 | 266 |
|
267 |
||
6383 | 268 |
|
15259 | 269 |
(** trivial code generator **) |
270 |
||
17144 | 271 |
fun typedef_codegen thy defs gr dep module brack t = |
15259 | 272 |
let |
16645 | 273 |
fun get_name (Type (tname, _)) = tname |
274 |
| get_name _ = ""; |
|
15259 | 275 |
fun mk_fun s T ts = |
276 |
let |
|
17144 | 277 |
val (gr', _) = Codegen.invoke_tycodegen thy defs dep module false (gr, T); |
15259 | 278 |
val (gr'', ps) = |
17144 | 279 |
foldl_map (Codegen.invoke_codegen thy defs dep module true) (gr', ts); |
280 |
val id = Codegen.mk_qual_id module (Codegen.get_const_id s gr'') |
|
15531 | 281 |
in SOME (gr'', Codegen.mk_app brack (Pretty.str id) ps) end; |
17261 | 282 |
fun lookup f T = |
17412 | 283 |
(case Symtab.lookup (TypedefData.get thy) (get_name T) of |
17261 | 284 |
NONE => "" |
285 |
| SOME s => f s); |
|
15259 | 286 |
in |
287 |
(case strip_comb t of |
|
288 |
(Const (s, Type ("fun", [T, U])), ts) => |
|
289 |
if lookup #4 T = s andalso |
|
290 |
is_none (Codegen.get_assoc_type thy (get_name T)) |
|
291 |
then mk_fun s T ts |
|
292 |
else if lookup #3 U = s andalso |
|
293 |
is_none (Codegen.get_assoc_type thy (get_name U)) |
|
294 |
then mk_fun s U ts |
|
15531 | 295 |
else NONE |
296 |
| _ => NONE) |
|
15259 | 297 |
end; |
298 |
||
299 |
fun mk_tyexpr [] s = Pretty.str s |
|
300 |
| mk_tyexpr [p] s = Pretty.block [p, Pretty.str (" " ^ s)] |
|
301 |
| mk_tyexpr ps s = Pretty.list "(" (") " ^ s) ps; |
|
302 |
||
17144 | 303 |
fun typedef_tycodegen thy defs gr dep module brack (Type (s, Ts)) = |
17412 | 304 |
(case Symtab.lookup (TypedefData.get thy) s of |
15531 | 305 |
NONE => NONE |
306 |
| SOME (newT as Type (tname, Us), oldT, Abs_name, Rep_name) => |
|
17280 | 307 |
if is_some (Codegen.get_assoc_type thy tname) then NONE else |
15259 | 308 |
let |
17144 | 309 |
val module' = Codegen.if_library |
310 |
(Codegen.thyname_of_type tname thy) module; |
|
311 |
val node_id = tname ^ " (type)"; |
|
312 |
val (gr', (((qs, (_, Abs_id)), (_, Rep_id)), ty_id)) = foldl_map |
|
313 |
(Codegen.invoke_tycodegen thy defs dep module (length Ts = 1)) |
|
314 |
(gr, Ts) |>>> |
|
315 |
Codegen.mk_const_id module' Abs_name |>>> |
|
316 |
Codegen.mk_const_id module' Rep_name |>>> |
|
317 |
Codegen.mk_type_id module' s; |
|
318 |
val tyexpr = mk_tyexpr qs (Codegen.mk_qual_id module ty_id) |
|
319 |
in SOME (case try (Codegen.get_node gr') node_id of |
|
320 |
NONE => |
|
15259 | 321 |
let |
322 |
val (gr'', p :: ps) = foldl_map |
|
17144 | 323 |
(Codegen.invoke_tycodegen thy defs node_id module' false) |
324 |
(Codegen.add_edge (node_id, dep) |
|
325 |
(Codegen.new_node (node_id, (NONE, "", "")) gr'), oldT :: Us); |
|
15259 | 326 |
val s = |
327 |
Pretty.string_of (Pretty.block [Pretty.str "datatype ", |
|
17144 | 328 |
mk_tyexpr ps (snd ty_id), |
15259 | 329 |
Pretty.str " =", Pretty.brk 1, Pretty.str (Abs_id ^ " of"), |
330 |
Pretty.brk 1, p, Pretty.str ";"]) ^ "\n\n" ^ |
|
331 |
Pretty.string_of (Pretty.block [Pretty.str ("fun " ^ Rep_id), |
|
332 |
Pretty.brk 1, Pretty.str ("(" ^ Abs_id), Pretty.brk 1, |
|
333 |
Pretty.str "x) = x;"]) ^ "\n\n" ^ |
|
334 |
(if "term_of" mem !Codegen.mode then |
|
335 |
Pretty.string_of (Pretty.block [Pretty.str "fun ", |
|
17144 | 336 |
Codegen.mk_term_of gr'' module' false newT, Pretty.brk 1, |
15259 | 337 |
Pretty.str ("(" ^ Abs_id), Pretty.brk 1, |
338 |
Pretty.str "x) =", Pretty.brk 1, |
|
339 |
Pretty.block [Pretty.str ("Const (\"" ^ Abs_name ^ "\","), |
|
340 |
Pretty.brk 1, Codegen.mk_type false (oldT --> newT), |
|
341 |
Pretty.str ")"], Pretty.str " $", Pretty.brk 1, |
|
17144 | 342 |
Codegen.mk_term_of gr'' module' false oldT, Pretty.brk 1, |
15259 | 343 |
Pretty.str "x;"]) ^ "\n\n" |
344 |
else "") ^ |
|
345 |
(if "test" mem !Codegen.mode then |
|
346 |
Pretty.string_of (Pretty.block [Pretty.str "fun ", |
|
17144 | 347 |
Codegen.mk_gen gr'' module' false [] "" newT, Pretty.brk 1, |
15259 | 348 |
Pretty.str "i =", Pretty.brk 1, |
349 |
Pretty.block [Pretty.str (Abs_id ^ " ("), |
|
17144 | 350 |
Codegen.mk_gen gr'' module' false [] "" oldT, Pretty.brk 1, |
15259 | 351 |
Pretty.str "i);"]]) ^ "\n\n" |
352 |
else "") |
|
17144 | 353 |
in Codegen.map_node node_id (K (NONE, module', s)) gr'' end |
354 |
| SOME _ => Codegen.add_edge (node_id, dep) gr', tyexpr) |
|
15259 | 355 |
end) |
17144 | 356 |
| typedef_tycodegen thy defs gr dep module brack _ = NONE; |
15259 | 357 |
|
358 |
val setup = |
|
359 |
[TypedefData.init, |
|
360 |
Codegen.add_codegen "typedef" typedef_codegen, |
|
361 |
Codegen.add_tycodegen "typedef" typedef_tycodegen]; |
|
362 |
||
363 |
||
364 |
||
6383 | 365 |
(** outer syntax **) |
366 |
||
17057 | 367 |
local structure P = OuterParse and K = OuterKeyword in |
6383 | 368 |
|
6357 | 369 |
val typedeclP = |
12624 | 370 |
OuterSyntax.command "typedecl" "type declaration (HOL)" K.thy_decl |
12876
a70df1e5bf10
got rid of explicit marginal comments (now stripped earlier from input);
wenzelm
parents:
12694
diff
changeset
|
371 |
(P.type_args -- P.name -- P.opt_infix >> (fn ((vs, t), mx) => |
6357 | 372 |
Toplevel.theory (add_typedecls [(t, vs, mx)]))); |
373 |
||
6723 | 374 |
|
17339 | 375 |
val typedef_decl = |
16126
3ba9eb7ea366
fixed outer syntax: allow type_args with parentheses;
wenzelm
parents:
15570
diff
changeset
|
376 |
Scan.optional (P.$$$ "(" |-- |
3ba9eb7ea366
fixed outer syntax: allow type_args with parentheses;
wenzelm
parents:
15570
diff
changeset
|
377 |
((P.$$$ "open" >> K false) -- Scan.option P.name || P.name >> (fn s => (true, SOME s))) |
3ba9eb7ea366
fixed outer syntax: allow type_args with parentheses;
wenzelm
parents:
15570
diff
changeset
|
378 |
--| P.$$$ ")") (true, NONE) -- |
11744 | 379 |
(P.type_args -- P.name) -- P.opt_infix -- (P.$$$ "=" |-- P.term) -- |
12876
a70df1e5bf10
got rid of explicit marginal comments (now stripped earlier from input);
wenzelm
parents:
12694
diff
changeset
|
380 |
Scan.option (P.$$$ "morphisms" |-- P.!!! (P.name -- P.name)); |
6357 | 381 |
|
17339 | 382 |
fun mk_typedef ((((((def, opt_name), (vs, t)), mx), A), morphs)) = |
383 |
typedef ((def, if_none opt_name (Syntax.type_name t mx)), (t, vs, mx), A, morphs); |
|
6357 | 384 |
|
385 |
val typedefP = |
|
6723 | 386 |
OuterSyntax.command "typedef" "HOL type definition (requires non-emptiness proof)" K.thy_goal |
17339 | 387 |
(typedef_decl >> (Toplevel.print oo (Toplevel.theory_to_proof o mk_typedef))); |
6357 | 388 |
|
6723 | 389 |
|
11744 | 390 |
val _ = OuterSyntax.add_keywords ["morphisms"]; |
6357 | 391 |
val _ = OuterSyntax.add_parsers [typedeclP, typedefP]; |
392 |
||
4866 | 393 |
end; |
6383 | 394 |
|
395 |
end; |