fact: Definition bool_of_kind k := match k with kf => true | kv => false end.
imports: Init.Wf Recdef Reals mathcomp(all_ssreflect perm zmodp matrix ssralg) mathcomp(Rstruct) ssrR Reals_ext f2 subgraph_partition tanner fdist channel pproba linearcode ssralg_ext tanner_partition summary ldpc checksum