proposition: Lemma jcPr_TripC12 (E : {set A}) (F : {set B }) (G : {set C}) : \Pr_(fdistC12 P)[F `* E | G] = \Pr_P[E `* F | G].
proof: Proof. by rewrite /jcPr Pr_fdistC12 fdistC12_snd. Qed.
imports: mathcomp(all_ssreflect ssralg matrix) mathcomp(Rstruct) Reals ssrR realType_ext Reals_ext logb ssr_ext ssralg_ext bigop_ext fdist proba