fact: Definition trans_min_RV (X : {RV P -> R}) m : {RV P -> R} := fun x => X x - m.
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