| Fri, 06 Oct 2000 14:19:48 +0200 | wenzelm | tuned; | file | diff | annotate |
| Thu, 28 Sep 2000 19:06:46 +0200 | wenzelm | fixed ref; | file | diff | annotate |
| Tue, 05 Sep 2000 18:45:09 +0200 | wenzelm | simplified PG/X-Symbol intro; | file | diff | annotate |
| Mon, 14 Aug 2000 18:45:49 +0200 | wenzelm | tuned; | file | diff | annotate |
| Thu, 06 Jul 2000 18:11:15 +0200 | wenzelm | Isabelle99-1; | file | diff | annotate |
| Sat, 01 Jul 2000 19:59:24 +0200 | wenzelm | removed "help"; | file | diff | annotate |
| Tue, 09 May 2000 14:16:32 +0200 | wenzelm | improved X-Symbol stuff; | file | diff | annotate |