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

(i)	$\mathcal{M}$ is the D3566: Set of unsigned basic measures on $M$

The set of finite unsigned basic measures on $M$ is the D11: Set \begin{equation} \{ \mu \in \mathcal{M} : \mu(X) < \infty \} \end{equation}