| Thu, 15 Feb 2018 12:11:00 +0100 | wenzelm | more symbols; | file | diff | annotate |
| Fri, 12 Jan 2018 14:08:53 +0100 | wenzelm | isabelle update_cartouches -c; | file | diff | annotate |
| Tue, 07 Nov 2017 14:52:27 +0100 | nipkow | Replaced { } proofs by local lemmas; added Hoare logic with logical variables. | file | diff | annotate |