| Fri, 08 Jan 2010 21:31:45 +0100 | Christian Urban | polished | file | diff | annotate |
| Fri, 01 Jan 2010 00:19:11 +0100 | Christian Urban | updated to new Isabelle | file | diff | annotate |
| Sun, 06 Dec 2009 14:26:14 +0100 | Christian Urban | polised | file | diff | annotate |
| Sun, 22 Nov 2009 15:27:10 +0100 | Christian Urban | updated to new Isabelle and clarified Skip_Proof | file | diff | annotate |