proposition: Lemma divz_nat (n d : nat) : (n %/ d)%Z = (n %/ d)%N.
proof: Proof. by case: d => // d; rewrite /divz /= mul1r. 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)