proposition: Lemma cpr_eq_unit_RV (U : finType) (A : eqType) (P : {fdist U}) (X : {RV P -> A}) (a : A) : `Pr[ X = a | (unit_RV P) = tt ] = `Pr[ X = a ].
proof: Proof. by rewrite cpr_eqE' cPrET pr_eqE. 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