| Sun, 08 Apr 2018 12:31:08 +0200 | nipkow | moved and renamed lemmas | file | diff | annotate |
| Fri, 18 Mar 2016 10:14:56 +0100 | nipkow | added tree lemmas | file | diff | annotate |
| Tue, 23 Feb 2016 16:25:08 +0100 | nipkow | more canonical names | file | diff | annotate |
| Wed, 13 Jan 2016 09:38:16 +0100 | nipkow | tuned layout | file | diff | annotate |
| Tue, 22 Sep 2015 08:38:25 +0200 | nipkow | added red black trees | file | diff | annotate |