fact: Definition inde_events (E F : {set A}) := Pr d (E :&: F) = Pr d E * Pr d F.
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