fact: Definition indic_sfun (D : set aT) (mD : measurable D) := [the {sfun aT >-> rT} of mindic rT mD].
imports: HB(structures) mathcomp(all_ssreflect ssralg ssrnum ssrint interval finmap) mathcomp(mathcomp_extra boolp classical_sets functions) mathcomp(cardinality fsbigop ) signed reals ereal topology normedtype sequences real_interval esum measure lebesgue_measure numfun