doc-src/AxClass/Group/Product.thy

--- a/doc-src/AxClass/Group/Product.thy	Fri Jun 17 11:35:35 2005 +0200
+++ b/doc-src/AxClass/Group/Product.thy	Fri Jun 17 16:12:49 2005 +0200
@@ -1,7 +1,7 @@
 
 header {* Syntactic classes *}
 
-theory Product = Main:
+theory Product imports Main begin
 
 text {*
   \medskip\noindent There is still a feature of Isabelle's type system