| Mon, 12 Aug 2019 15:57:40 +0200 | nipkow | simplified defs (thanks to Mohammad) | changeset | files |
| Sun, 11 Aug 2019 22:36:34 +0200 | wenzelm | record sort constraints unconditionally: minimal performance implications; | changeset | files |
| Sat, 10 Aug 2019 17:09:20 +0200 | wenzelm | more careful export of unnamed proof boxes: avoid duplicates via memoing; | changeset | files |