--- a/src/HOL/Library/Ramsey.thy Thu Jun 26 10:06:54 2008 +0200
+++ b/src/HOL/Library/Ramsey.thy Thu Jun 26 10:07:01 2008 +0200
@@ -6,7 +6,7 @@
header "Ramsey's Theorem"
theory Ramsey
-imports ATP_Linkup Infinite_Set
+imports Plain Presburger Infinite_Set
begin
subsection {* Preliminaries *}