fact: Definition RS_discard' (x : 'rV[F]_n) : 'rV[F]_(n - d.+1).+1 := rsubmx (castmx (erefl, esym tmp) x).
imports: mathcomp(all_ssreflect ssralg finalg poly polydiv cyclic) mathcomp(perm matrix mxpoly vector mxalgebra zmodp) ssr_ext ssralg_ext poly_ext channel_code decoding linearcode hamming dft poly_decoding euclid grs cyclic_code