proposition: Lemma fdistmap_id (P : fdist R A) : fdistmap (@id A) P = P.
proof: Proof. by rewrite /fdistmap fdistbind1. Qed.
imports: mathcomp(all_ssreflect ssralg fingroup perm matrix) mathcomp(all_algebra vector reals normedtype) mathcomp(mathcomp_extra boolp) mathcomp(Rstruct) ssrR logb realType_ext ssr_ext ssralg_ext bigop_ext