src/HOL/Library/Ramsey.thy
changeset 25594 43c718438f9f
parent 24853 aab5798e5a33
child 25691 8f8d83af100a
--- a/src/HOL/Library/Ramsey.thy	Mon Dec 10 11:24:08 2007 +0100
+++ b/src/HOL/Library/Ramsey.thy	Mon Dec 10 11:24:09 2007 +0100
@@ -5,7 +5,9 @@
 
 header "Ramsey's Theorem"
 
-theory Ramsey imports Main Infinite_Set begin
+theory Ramsey
+imports PreList Infinite_Set
+begin
 
 subsection {* Preliminaries *}