converse_converse, converse_prod: renamed from
converse_of_converse, converse_of_prod
--- a/src/ZF/domrange.ML Fri Dec 16 13:43:01 1994 +0100
+++ b/src/ZF/domrange.ML Fri Dec 16 13:44:48 1994 +0100
@@ -33,14 +33,14 @@
val converse_cs = pair_cs addSIs [converseI]
addSEs [converseD,converseE];
-qed_goal "converse_of_converse" ZF.thy
+qed_goal "converse_converse" ZF.thy
"!!A B r. r<=Sigma(A,B) ==> converse(converse(r)) = r"
(fn _ => [ (fast_tac (converse_cs addSIs [equalityI]) 1) ]);
qed_goal "converse_type" ZF.thy "!!A B r. r<=A*B ==> converse(r)<=B*A"
(fn _ => [ (fast_tac converse_cs 1) ]);
-qed_goal "converse_of_prod" ZF.thy "converse(A*B) = B*A"
+qed_goal "converse_prod" ZF.thy "converse(A*B) = B*A"
(fn _ => [ (fast_tac (converse_cs addSIs [equalityI]) 1) ]);
qed_goal "converse_empty" ZF.thy "converse(0) = 0"
@@ -79,7 +79,7 @@
qed_goalw "range_subset" ZF.thy [range_def] "range(A*B) <= B"
(fn _ =>
- [ (rtac (converse_of_prod RS ssubst) 1),
+ [ (rtac (converse_prod RS ssubst) 1),
(rtac domain_subset 1) ]);