--- a/src/HOL/Library/Nested_Environment.thy Tue Aug 17 11:00:24 2004 +0200
+++ b/src/HOL/Library/Nested_Environment.thy Wed Aug 18 11:09:40 2004 +0200
@@ -6,7 +6,7 @@
header {* Nested environments *}
theory Nested_Environment
-import Main
+imports Main
begin
text {*