fact: Definition Esti (M : 'M[letter]_(m, n)) : 'rV[letter]_n := \row_i Prod (colFnext H (y ``_ i) (col i M) i).
imports: mathcomp(all_ssreflect ssralg fingroup finalg perm zmodp) mathcomp(matrix) ssr_ext ssralg_ext num_occ f2 ssrR hamming tanner linearcode