| Sat, 23 Jun 2007 19:33:22 +0200 | nipkow | tuned and renamed group_eq_simps and ring_eq_simps | file | diff | annotate |
| Fri, 17 Nov 2006 02:20:03 +0100 | wenzelm | more robust syntax for definition/abbreviation/notation; | file | diff | annotate |
| Sun, 01 Oct 2006 18:29:30 +0200 | wenzelm | tuned proofs; | file | diff | annotate |