proposition: Lemma comp_polyC c p : c%:P \Po p = c%:P.
proof: Proof. by rewrite /(_ \Po p) map_polyC hornerC. Qed.
imports: HB(structures) mathcomp(ssreflect ssrbool ssrfun eqtype ssrnat seq choice) mathcomp(fintype bigop finset tuple) mathcomp(div ssralg countalg binomial)