| Sat, 13 Jan 2018 11:22:46 +0100 | wenzelm | added \<^cancel> operator for unused text; | changeset | files |
| Fri, 12 Jan 2018 20:19:59 +0100 | wenzelm | tuned; | changeset | files |
| Sat, 13 Jan 2018 09:18:54 +0000 | haftmann | restored naming of lemmas after corresponding constants | changeset | files |
| Fri, 12 Jan 2018 17:58:03 +0100 | wenzelm | prefer formal comments; | changeset | files |