<p>I wanted to write this formula in an <a href="https://stats.stackexchange.com/a/322973/">answer</a>:</p>

<p><a href="https://i.stack.imgur.com/uTxoj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uTxoj.png" alt="enter image description here"></a></p>

<p>All the <a href="https://tex.stackexchange.com/questions/79434/double-perpendicular-symbol-for-independence">instructions I found</a> involved creating new command or extra packages, is there a list of available symbols supported by Exchange? I got stuck in this meta search where the result would be on Exchange about LaTex but not about LaTex on Exchange :)</p>
