fact: Definition measure_of_charge d (T : semiRingOfSetsType d) (R : numFieldType) (nu : set T -> \bar R) of (forall E, 0 <= nu E) := nu.
imports: mathcomp(all_ssreflect ssralg ssrnum ssrint interval) mathcomp(finmap fingroup perm rat) mathcomp(mathcomp_extra boolp classical_sets cardinality) mathcomp(functions fsbigop set_interval) HB(structures) reals ereal signed topology numfun normedtype sequences esum measure realfun lebesgue_measure lebesgue_integral