--- a/src/HOL/Real/Lubs.thy Thu Jun 26 10:06:54 2008 +0200
+++ b/src/HOL/Real/Lubs.thy Thu Jun 26 10:07:01 2008 +0200
@@ -7,7 +7,7 @@
header{*Definitions of Upper Bounds and Least Upper Bounds*}
theory Lubs
-imports Main
+imports Plain
begin
text{*Thanks to suggestions by James Margetson*}