--- a/src/ZF/ex/misc.ML Mon Apr 21 10:16:01 1997 +0200
+++ b/src/ZF/ex/misc.ML Mon Apr 21 10:16:41 1997 +0200
@@ -9,6 +9,11 @@
writeln"ZF/ex/misc";
+(*Nice Blast_tac benchmark. Proved in 0.3s; old tactics can't manage it!*)
+goal ZF.thy "!!S. ALL x:S. ALL y:S. x<=y ==> EX z. S <= {z}";
+by (Blast_tac 1);
+result();
+
set_current_thy"Perm";
(*Example 12 (credited to Peter Andrews) from
--- a/src/ZF/func.ML Mon Apr 21 10:16:01 1997 +0200
+++ b/src/ZF/func.ML Mon Apr 21 10:16:41 1997 +0200
@@ -310,11 +310,6 @@
(*by (Blast_tac 1); takes too long...*)
qed "function_Union";
-(*Nice Blast_tac benchmark. Proved in 0.3s; old tactics can't manage it!*)
-goal ZF.thy "!!S. ALL x:S. ALL y:S. x<=y ==> EX z. S <= {z}";
-by (Blast_tac 1);
-result();
-
goalw ZF.thy [Pi_def]
"!!S. [| ALL f:S. EX C D. f:C->D; \
\ ALL f:S. ALL y:S. f<=y | y<=f |] ==> \