| Wed, 07 Oct 2015 23:28:49 +0200 | wenzelm | isabelle update_cartouches; | file | diff | annotate |
| Sun, 02 Nov 2014 17:58:35 +0100 | wenzelm | modernized header; | file | diff | annotate |
| Tue, 13 Aug 2013 22:37:58 +0200 | wenzelm | more symbolic notation; | file | diff | annotate |