--- a/doc-src/TutorialI/CTL/PDL.thy Wed Oct 19 17:21:53 2005 +0200
+++ b/doc-src/TutorialI/CTL/PDL.thy Wed Oct 19 21:52:07 2005 +0200
@@ -1,4 +1,4 @@
-(*<*)theory PDL = Base:(*>*)
+(*<*)theory PDL imports Base begin(*>*)
subsection{*Propositional Dynamic Logic --- PDL*}