src/HOL/Library/Product_ord.thy
changeset 25594 43c718438f9f
parent 25571 c9e39eafc7a0
child 25691 8f8d83af100a
--- a/src/HOL/Library/Product_ord.thy	Mon Dec 10 11:24:08 2007 +0100
+++ b/src/HOL/Library/Product_ord.thy	Mon Dec 10 11:24:09 2007 +0100
@@ -6,7 +6,7 @@
 header {* Order on product types *}
 
 theory Product_ord
-imports Main
+imports PreList
 begin
 
 instantiation "*" :: (ord, ord) ord