| Sat, 05 Jan 2019 17:24:33 +0100 | wenzelm | isabelle update -u control_cartouches; | file | diff | annotate |
| Thu, 15 Feb 2018 12:11:00 +0100 | wenzelm | more symbols; | file | diff | annotate |
| Sat, 13 Jan 2018 11:42:30 +0100 | wenzelm | prefer formal comments; | file | diff | annotate |