| Tue, 05 Jan 2016 13:48:51 +0100 | wenzelm | updated headers; | file | diff | annotate |
| Wed, 17 Jun 2015 11:03:05 +0200 | wenzelm | isabelle update_cartouches; | file | diff | annotate |
| Thu, 30 Apr 2015 15:28:01 +0100 | paulson | tidying some messy proofs | file | diff | annotate |