src/HOL/Library/Executable_Set.thy

--- a/src/HOL/Library/Executable_Set.thy	Mon Dec 10 11:24:09 2007 +0100
+++ b/src/HOL/Library/Executable_Set.thy	Mon Dec 10 11:24:12 2007 +0100
@@ -6,7 +6,7 @@
 header {* Implementation of finite sets by lists *}
 
 theory Executable_Set
-imports Main
+imports List
 begin
 
 subsection {* Definitional rewrites *}