--- a/src/HOL/ex/Classical.thy Fri Jun 17 11:35:35 2005 +0200
+++ b/src/HOL/ex/Classical.thy Fri Jun 17 16:12:49 2005 +0200
@@ -6,7 +6,7 @@
header{*Classical Predicate Calculus Problems*}
-theory Classical = Main:
+theory Classical imports Main begin
subsection{*Traditional Classical Reasoner*}