proposition: Lemma sigma_finite_mzero d (T : measurableType d) (R : realType) : sigma_finite setT (@mzero d T R).
proof: Proof. by apply: fin_num_fun_sigma_finite => //; rewrite measure0. 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)