proposition: Lemma size_norm p : size (norm_deg p) = size p.
proof: Proof. by rewrite size_scale // lt0r_neq0 // invr_gt0 sum_coef_pos. Qed.
imports: mathcomp(all_ssreflect ssralg fingroup zmodp poly ssrnum) mathcomp(matrix perm) ssr_ext ssralg_ext fdist