| Fri, 03 Dec 2010 13:51:07 +0000 | Christian Urban | updated to Isabelle 2nd December | file | diff | annotate |
| Mon, 29 Nov 2010 08:01:09 +0000 | Christian Urban | isarfied some of the high-level proofs | file | diff | annotate |
| Fri, 26 Nov 2010 19:03:23 +0000 | Christian Urban | completely different method fro deriving the exhaust lemma | file | diff | annotate |