Deleted semicolon at the end of the qed_goal line, which was preventing
not_emptyE from being proved.
--- a/src/ZF/ZF.ML Thu Jan 19 19:46:49 1995 +0100
+++ b/src/ZF/ZF.ML Fri Jan 20 02:00:23 1995 +0100
@@ -405,7 +405,7 @@
qed_goal "not_emptyI" ZF.thy "!!A a. a:A ==> A ~= 0"
(fn _ => [REPEAT (ares_tac [notI, equals0D] 1)]);
-qed_goal "not_emptyE" ZF.thy "[| A ~= 0; !!x. x:A ==> R |] ==> R";
+qed_goal "not_emptyE" ZF.thy "[| A ~= 0; !!x. x:A ==> R |] ==> R"
(fn [major,minor]=>
[ rtac ([major, equals0I] MRS swap) 1,
swap_res_tac [minor] 1,