| Wed, 13 Jun 2018 15:24:20 +0200 | nipkow | qualify interpretations to avoid clashes | file | diff | annotate |
| Tue, 12 Jun 2018 17:18:40 +0200 | nipkow | more abstract naming | file | diff | annotate |
| Mon, 11 Jun 2018 20:45:51 +0200 | nipkow | tuned def. of del and proved preservation of rbt (finally) | file | diff | annotate |
| Mon, 11 Jun 2018 16:29:27 +0200 | nipkow | tuned order of arguments | file | diff | annotate |
| Sat, 28 Jan 2017 15:12:19 +0100 | nipkow | split balance into two, clearer etc | 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 |
| Sat, 05 Dec 2015 16:33:20 +0100 | nipkow | avoid name clashes | file | diff | annotate |