Let $X, Y \in \text{Random}(\Omega \to \mathbb{R})$ each be a D3161: Random real number such that
| (i) | \begin{equation} \mathbb{E} |X|, \mathbb{E} |Y| < \infty \end{equation} |
| (ii) | $X, Y$ is an D2713: Independent random collection |
Then
\begin{equation}
\mathbb{E}(X \mid Y)
\overset{a.s.}{=} \mathbb{E}(X)
\end{equation}
