| Tue, 19 Feb 2008 12:25:56 +0100 | urbanc | slightly tuned | file | diff | annotate |
| Tue, 19 Feb 2008 10:21:09 +0100 | berghofe | Yet another proof of False, this time using the strong case analysis rule. | file | diff | annotate |
| Mon, 11 Feb 2008 15:19:17 +0100 | urbanc | tuned proofs and comments | file | diff | annotate |