| Sun, 04 Nov 2012 20:11:05 +0100 | wenzelm | removed junk; | changeset | files |
| Sun, 04 Nov 2012 20:01:26 +0100 | wenzelm | removed pointless historic material; | changeset | files |
| Sun, 04 Nov 2012 19:51:53 +0100 | wenzelm | more on Simplifier rules, based on old material; | changeset | files |