proposition: Lemma ler_horner : {in `[a, b] &, {mono horner p : x y / x <= y}}.
proof: Proof. exact/le_mono_in/ltr_hornerW. Qed.
imports: mathcomp.ssreflect.ssreflect mathcomp(ssrfun ssrbool eqtype ssrnat seq choice fintype) mathcomp(bigop order ssralg poly polydiv ssrnum zmodp) mathcomp(polyorder path interval ssrint)