--- a/src/HOL/HoareParallel/Graph.thy Fri Jun 17 11:35:35 2005 +0200
+++ b/src/HOL/HoareParallel/Graph.thy Fri Jun 17 16:12:49 2005 +0200
@@ -3,7 +3,7 @@
\section {Formalization of the Memory} *}
-theory Graph = Main:
+theory Graph imports Main begin
datatype node = Black | White