| Sun, 29 Mar 2015 16:22:35 +0200 | wenzelm | rule_insts_schematic is considered legacy and false by default; | changeset | files |
| Sun, 29 Mar 2015 16:01:12 +0200 | wenzelm | tuned; | changeset | files |
| Sat, 28 Mar 2015 21:32:48 +0100 | haftmann | clarified no_zero_devisors: makes only sense in a semiring; | changeset | files |