On The Independence Axiom (opens in new tab)

<h2><strong>The </strong><s><strong>Fifth</strong></s><strong> Fourth Postulate of Decision Theory</strong></h2><p>In 1820, the Hungarian mathematician Farkas Bolyai <a href="https://en.wikipedia.org/wiki/János_Bolyai">wrote</a> a desperate letter to his son János, who had become consumed by the same problem that had haunted his father for decades:</p><blockquote><p><i>"You must not attempt this approach to parallels. I know this way to the very end. I have traversed this bottomless night, wh...