]> matita.cs.unibo.it Git - helm.git/history - helm/software/matita/dama/divisible_group.ma
the is_structure is a bad idea if you don't have canonical structures.
[helm.git] / helm / software / matita / dama / divisible_group.ma
2007-12-04 Enrico Tassirefactoring of some lemmas, shorter proofs
2007-12-04 Enrico Tassisandwitch theorem done
2007-12-03 Enrico Tassi1 lemma left!!!!