proposition: Lemma hlength_bnd_infty b r : hlength [set` Interval (BSide b r) +oo%O] = +oo :> \bar R.
proof: Proof. by rewrite hlength_itv /= ltry. Qed.
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