proposition: Lemma errloc0 (a : 'rV[F]_n) : errloc a set0 = 1.
proof: Proof. by rewrite /errloc big_set0. Qed.
imports: mathcomp(all_ssreflect ssralg finalg poly polydiv cyclic) mathcomp(perm matrix mxpoly) ssr_ext ssralg_ext cyclic_code dft