| Tue, 24 Nov 2009 16:34:39 +0100 | Christian Urban | tuned solution with comb_conv | file | diff | annotate |
| Tue, 17 Nov 2009 20:36:18 +0100 | Christian Urban | added exercise | file | diff | annotate |
| Mon, 19 Oct 2009 02:02:21 +0200 | Christian Urban | polished theorem section | file | diff | annotate |
| Sun, 18 Oct 2009 21:22:44 +0200 | Christian Urban | updated to new Isabelle | file | diff | annotate |