Continuity from below of a measure
= Continuity from below of a measure
If $E_n\uparrow E$, then <countable additivity> gives $\mu(E_n)\uparrow\mu(E)$, even when the limiting measure is infinite.
= Continuity from below of a measure
If $E_n\uparrow E$, then <countable additivity> gives $\mu(E_n)\uparrow\mu(E)$, even when the limiting measure is infinite.