| Wed, 20 Jul 2016 21:26:11 +0200 | wenzelm | clarified imports; | file | diff | annotate |
| Wed, 13 Apr 2016 18:01:05 +0200 | wenzelm | eliminated "xname" and variants; | file | diff | annotate |
| Sun, 07 Feb 2016 19:43:40 +0100 | wenzelm | more explicit dummy proofs; | file | diff | annotate |