| Wed, 23 Nov 2011 13:41:42 +0100 | wenzelm | updated proof; | file | diff | annotate |
| Sun, 20 Jul 2008 11:19:08 +0200 | haftmann | (adjusted) | file | diff | annotate |
| Fri, 02 Nov 2007 16:38:14 +0100 | paulson | recdef to fun | file | diff | annotate |
| Fri, 02 Nov 2007 08:59:15 +0100 | nipkow | recdef -> fun | file | diff | annotate |