Let $X \in \text{Random}[0, \infty]$ be a D5101: Random unsigned basic number.
Then
\begin{equation}
\mathbb{E}(X)
= \int^{\infty}_0 \mathbb{P}(X > t) \, d t
\end{equation}
(i) | $X : \Omega \to [0, \infty]$ is a D5101: Random unsigned basic number on $P$ |