| Sun, 07 Jan 2018 22:15:54 +0100 | wenzelm | prefer formal comments; | file | diff | annotate |
| Fri, 10 Nov 2017 22:05:30 +0100 | nipkow | replaced raw proof blocks by local lemmas | file | diff | annotate |
| Tue, 09 Aug 2016 17:00:36 +0200 | nipkow | introduced aggressive splitter "split!" | file | diff | annotate |
| Thu, 07 Jul 2016 18:08:02 +0200 | nipkow | got rid of class cmp; added height-size proofs by Daniel Stuewe | file | diff | annotate |
| Sun, 06 Mar 2016 10:33:34 +0100 | nipkow | tuned | file | diff | annotate |
| Wed, 02 Mar 2016 10:01:31 +0100 | nipkow | added invariant proofs to AA trees | file | diff | annotate |
| Tue, 23 Feb 2016 16:25:08 +0100 | nipkow | more canonical names | file | diff | annotate |