proposition: Lemma ltr_horner : {in `[a, b] &, {mono horner p : x y / x < y}}.
proof: Proof. exact/leW_mono_in/ler_horner. 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)