diff -r 6061ae1f90f2 -r 9bc16273c2d4 src/ZF/WF.thy
--- a/src/ZF/WF.thy	Fri Jun 17 11:35:35 2005 +0200
+++ b/src/ZF/WF.thy	Fri Jun 17 16:12:49 2005 +0200
@@ -17,7 +17,7 @@
 
 header{*Well-Founded Recursion*}
 
-theory WF = Trancl:
+theory WF imports Trancl begin
 
 constdefs
   wf           :: "i=>o"