src/ZF/WF.thy
changeset 124 858ab9a9b047
parent 0 a5a9c433f639
child 435 ca5356bd315a
--- a/src/ZF/WF.thy	Tue Nov 16 14:23:19 1993 +0100
+++ b/src/ZF/WF.thy	Tue Nov 16 14:24:21 1993 +0100
@@ -6,7 +6,7 @@
 Well-founded Recursion
 *)
 
-WF = Trancl +
+WF = Trancl + "mono" +
 consts
     wf		 ::      "i=>o"
     wftrec,wfrec ::      "[i, i, [i,i]=>i] =>i"