]> matita.cs.unibo.it Git - helm.git/history - matitaB/matita/contribs/dama/dama_duality/constructive_connectives.ma
update in basic_2
[helm.git] / matitaB / matita / contribs / dama / dama_duality / constructive_connectives.ma
2011-02-21 Wilmer Ricciottifork for Matita version B