--- a/ProgTutorial/Intro.thy	Mon Apr 30 12:36:32 2012 +0100
+++ b/ProgTutorial/Intro.thy	Mon Apr 30 14:43:52 2012 +0100
@@ -2,14 +2,6 @@
 imports Base
 begin
 
-(*<*)
-setup{*
-open_file_with_prelude 
-  "Intro_Code.thy"
-  ["theory Intro", "imports Main", "begin"]
-*}
-(*>*)
-
 chapter {* Introduction *}
 
 text {*