| Thu, 14 Jan 2010 18:35:38 +0100 | Christian Urban | nearly all of the proof | file | diff | annotate |
| Thu, 14 Jan 2010 17:57:20 +0100 | Christian Urban | right generalisation | file | diff | annotate |
| Thu, 14 Jan 2010 17:53:23 +0100 | Cezary Kaliszyk | First subgoal. | file | diff | annotate |