Let $M = (X, \mathcal{F})$ be a D1108: Measurable space such that

(i)	$E_0, E_1, E_2, \ldots \in \mathcal{F}$ are each a D1109: Measurable set in $M$

Then \begin{equation} \bigcap_{n \in \mathbb{N}} E_n \in \mathcal{F} \end{equation}