proposition: Lemma div0z d : (0 %/ d)%Z = 0.
proof: Proof. by rewrite -(canLR (signrMK _) (divz_abs _ _)) (divz_nat 0) div0n mulr0. 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)