| Mon, 10 Jul 2023 00:44:45 +0100 | Chengsong | Addressed Gerog "can't understand 'erase messes with structure'" comment | file | diff | annotate |
| Sun, 09 Jul 2023 02:08:12 +0100 | Chengsong | finished 4.3.2 section explaining why lemma 11 is too strong | file | diff | annotate |
| Sun, 09 Jul 2023 00:29:02 +0100 | Chengsong | Fixed some annotated/unannotated a/r notation inconsistencies. | file | diff | annotate |