| Sun, 20 May 2018 22:04:17 +0200 | wenzelm | removed junk; | file | diff | annotate |
| Thu, 15 Feb 2018 12:11:00 +0100 | wenzelm | more symbols; | file | diff | annotate |
| Tue, 16 Jan 2018 09:30:00 +0100 | wenzelm | standardized towards new-style formal comments: isabelle update_comments; | file | diff | annotate |