proposition: Lemma size_mxminpoly : size p_A = d.+1.
proof: Proof. by rewrite size_addl ?size_polyXn // size_opp ltnS size_poly. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat choice seq) mathcomp(div fintype tuple finfun bigop fingroup perm) mathcomp(ssralg zmodp matrix mxalgebra poly polydiv)