proposition: Lemma Rmu_ge0 A : Rmu A >= 0.
proof: Proof. by rewrite sume_ge0. 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)