proposition: Lemma modzDl m d : (d + m = m %[mod d])%Z.
proof: Proof. by rewrite -{1}[d]mul1r modzMDl. Qed.
imports: HB(structures) mathcomp(ssreflect ssrbool ssrfun eqtype ssrnat seq path) mathcomp(div choice fintype tuple finfun bigop prime order) mathcomp(ssralg poly ssrnum ssrint archimedean rat matrix) mathcomp(polydiv perm zmodp mxalgebra vector)