fact: Definition elebesgue_measure : set \bar R -> \bar R := fun S => lebesgue_measure (fine @` (S `\` [set -oo; +oo]%E)).
imports: mathcomp(all_ssreflect ssralg ssrnum ssrint interval) mathcomp(finmap fingroup perm rat) mathcomp(mathcomp_extra boolp classical_sets functions) mathcomp(cardinality fsbigop) reals ereal signed topology numfun normedtype HB(structures) sequences esum measure real_interval realfun exp lebesgue_stieltjes_measure