| Wed, 24 Apr 2013 16:43:19 +0200 | traytel | optimized proofs | file | diff | annotate |
| Thu, 18 Oct 2012 15:15:08 +0200 | wenzelm | fixed proof (cf. a81f95693c68); | file | diff | annotate |
| Wed, 10 Oct 2012 15:17:40 +0200 | wenzelm | eliminated spurious fact duplicates; | file | diff | annotate |
| Wed, 12 Sep 2012 05:29:21 +0200 | blanchet | renamed "Ordinals_and_Cardinals" to "Cardinals" | file | diff | annotate | base |