proposition: Lemma nderivnMn n m p : (p *+ m)^`N(n) = p^`N(n) *+ m.
proof: Proof. exact: linearMn. Qed.
imports: HB(structures) mathcomp(ssreflect ssrbool ssrfun eqtype ssrnat seq choice) mathcomp(fintype bigop finset tuple) mathcomp(div ssralg countalg binomial)