proposition: Lemma dvdz_exp k d m : (0 < k)%N -> (d %| m -> d %| m ^+ k)%Z.
proof: Proof. by case: k => // k _ d_dv_m; rewrite exprS dvdz_mulr. 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)