| Sun, 22 Nov 2009 15:27:10 +0100 | Christian Urban | updated to new Isabelle and clarified Skip_Proof | file | diff | annotate |
| Sun, 22 Nov 2009 03:13:29 +0100 | Christian Urban | tuning | file | diff | annotate |
| Thu, 19 Nov 2009 20:00:10 +0100 | Christian Urban | tuned | file | diff | annotate |
| Thu, 19 Nov 2009 17:48:44 +0100 | Christian Urban | spilt the Essential's chapter | file | diff | annotate | base |