diff -r 83cea5dc6bac -r 9a6e5e0c4906 CookBook/Intro.thy --- a/CookBook/Intro.thy Thu Jan 08 22:46:06 2009 +0000 +++ b/CookBook/Intro.thy Thu Jan 08 22:47:15 2009 +0000 @@ -3,6 +3,7 @@ begin + chapter {* Introduction *} text {*