proposition: Lemma mindicE (D : set aT) (mD : measurable D) : mindic mD = (fun x => (x \in D)%:R).
proof: Proof. by rewrite /mindic funeqE => t; rewrite indicE. Qed.
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