proposition: Lemma size_mk_monic_gt1 : (1 < size (mk_monic h))%N.
proof: Proof. by rewrite !fun_if size_polyX; case: leqP => //=; rewrite if_same. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice fintype tuple) mathcomp(bigop binomial finset finfun ssralg countalg finalg poly polydiv) mathcomp(perm fingroup matrix mxalgebra mxpoly vector countalg)