[math]\href{/cs2800/wiki/index.php/Pr}{Pr}(A \href{/cs2800/wiki/index.php/%5Cmid}{\mid} B) = \frac{\href{/cs2800/wiki/index.php/Pr}{Pr}(B \href{/cs2800/wiki/index.php/%5Cmid}{\mid} A) \href{/cs2800/wiki/index.php/Pr}{Pr}(A)}{\href{/cs2800/wiki/index.php/Pr}{Pr}(B)}
[/math]
