| Fri, 10 Apr 2015 12:16:45 +0200 | nipkow | renamed Multiset.fold -> fold_mset, Multiset.filter -> filter_mset | changeset | files |
| Fri, 10 Apr 2015 11:52:55 +0200 | wenzelm | tuned proofs; | changeset | files |
| Fri, 10 Apr 2015 11:31:10 +0200 | wenzelm | tuned signature; | changeset | files |