| Fri, 18 Jan 2002 18:30:19 +0100 | wenzelm | tuned; | file | diff | annotate |
| Tue, 18 Dec 2001 16:44:00 +0100 | paulson | minor suggestions from Markus | file | diff | annotate |
| Tue, 18 Dec 2001 14:27:57 +0100 | wenzelm | tuned; | file | diff | annotate |
| Thu, 06 Dec 2001 13:01:07 +0100 | paulson | intro and elim now require arguments | file | diff | annotate |