proposition: Lemma fdist_rV0 (x : 'rV[A]_0) (P: fdist R A) : P `^ 0 x = 1.
proof: Proof. by rewrite fdist_rVE big_ord0. 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