diff -r 6061ae1f90f2 -r 9bc16273c2d4 src/HOL/UNITY/Simple/Network.thy
--- a/src/HOL/UNITY/Simple/Network.thy	Fri Jun 17 11:35:35 2005 +0200
+++ b/src/HOL/UNITY/Simple/Network.thy	Fri Jun 17 16:12:49 2005 +0200
@@ -8,7 +8,7 @@
 From Misra, "A Logic for Concurrent Programming" (1994), section 5.7
 *)
 
-theory Network = UNITY:
+theory Network imports UNITY begin
 
 (*The state assigns a number to each process variable*)