diff -r 6061ae1f90f2 -r 9bc16273c2d4 src/ZF/Main.thy
--- a/src/ZF/Main.thy	Fri Jun 17 11:35:35 2005 +0200
+++ b/src/ZF/Main.thy	Fri Jun 17 16:12:49 2005 +0200
@@ -2,7 +2,7 @@
 
 header{*Theory Main: Everything Except AC*}
 
-theory Main = List + IntDiv + CardinalArith:
+theory Main imports List IntDiv CardinalArith begin
 
 (*The theory of "iterates" logically belongs to Nat, but can't go there because
   primrec isn't available into after Datatype.  The only theories defined