fact: Definition min_wH_cw := arg_min non_0_cw [pred cw | (cw \in C) && (wH cw != O)] (@wH F n).
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