proposition: Lemma additive_syndrome : additive syndrome.
proof: Proof. move=> x y; by rewrite syndromeD syndromeN. Qed.
imports: mathcomp(all_ssreflect ssralg poly polydiv fingroup perm) mathcomp(finalg zmodp matrix mxalgebra mxpoly vector) ssr_ext ssralg_ext poly_ext f2 hamming decoding channel_code