proposition: Lemma Pr_set0 : Pr set0 = 0.
proof: Proof. by rewrite /Pr big_pred0 // => a; rewrite in_set0. Qed.
imports: mathcomp(all_ssreflect ssralg ssrnum matrix) mathcomp(Rstruct reals) Reals Lra ssrR Reals_ext realType_ext logb ssr_ext ssralg_ext bigop_ext fdist