| Wed, 25 Sep 2019 17:22:57 +0200 | nipkow | replaced new type ('a,'b) tree by old type ('a*'b) tree. | file | diff | annotate |
| Mon, 16 Sep 2019 18:00:27 +0200 | nipkow | tuned | file | diff | annotate |
| Mon, 19 Aug 2019 16:49:24 +0200 | nipkow | tuned names | file | diff | annotate |
| Sun, 16 Sep 2018 15:16:04 +0200 | nipkow | more traditional formulation | file | diff | annotate |
| 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 16:29:27 +0200 | nipkow | tuned order of arguments | file | diff | annotate |
| Sun, 08 Apr 2018 12:31:08 +0200 | nipkow | moved and renamed lemmas | file | diff | annotate |
| Sat, 07 Apr 2018 22:09:57 +0200 | nipkow | tuned | file | diff | annotate |
| Sat, 02 Dec 2017 16:50:53 +0000 | haftmann | more simplification rules | file | diff | annotate |
| Thu, 15 Jun 2017 11:11:36 +0200 | nipkow | tuned | file | diff | annotate |
| Wed, 14 Jun 2017 19:39:12 +0200 | nipkow | simplified delete/proof | file | diff | annotate |
| Sat, 28 Jan 2017 15:12:19 +0100 | nipkow | split balance into two, clearer etc | file | diff | annotate |
| Fri, 27 Jan 2017 17:35:08 +0100 | nipkow | tuned name | file | diff | annotate |
| Fri, 27 Jan 2017 17:28:10 +0100 | nipkow | removed unclear clause; slower but clearer | file | diff | annotate |