]> matita.cs.unibo.it Git - helm.git/history - helm/software/matita/library/Z/inversion.ma
added a (for the moment) dummy field _subst to ProofengineTypes.proof.
[helm.git] / helm / software / matita / library / Z / inversion.ma
2007-05-09 Andrea AspertiProof of the moebius inversion theorem