proposition: Lemma measure_negligible (A : set T) : measurable A -> mu.-negligible A -> mu A = 0%E.
proof: Proof. by move=> mA /negligibleP ->. Qed.
imports: mathcomp(all_ssreflect all_algebra finmap) mathcomp(mathcomp_extra boolp classical_sets functions) mathcomp(cardinality fsbigop ) reals ereal signed topology normedtype sequences esum numfun HB(structures)