--- a/src/HOL/Library/Nested_Environment.thy Fri Jul 04 16:33:08 2008 +0200
+++ b/src/HOL/Library/Nested_Environment.thy Mon Jul 07 08:47:17 2008 +0200
@@ -6,7 +6,7 @@
header {* Nested environments *}
theory Nested_Environment
-imports Plain List
+imports Plain "~~/src/HOL/List"
begin
text {*