<p><img src="https://imgs.xkcd.com/comics/set_theory.png" alt="Proof of Zermelo&#x27;s well-ordering theorem given the Axiom of Choice: 1: Take S to be any set. 2: When I reach step three, if S hasn&#x27;t managed to find a well-ordering relation for itself, I&#x27;ll feed it into this wood chipper. 3: Hey, look, S is well-ordered."></p>
<blockquote>
<p>"<a href="https://xkcd.com/982/">Set Theory</a>", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License</p>
</blockquote>
<h2 id="alt-text"><a aria-hidden="true" class="anchor-heading" href="#alt-text"><svg aria-hidden="true" viewBox="0 0 16 16"><use xlink:href="#svg-link"></use></svg></a>Alt Text</h2>
<p>Proof of Zermelo's well-ordering theorem given the Axiom of Choice: 1: Take S to be any set. 2: When I reach step three, if S hasn't managed to find a well-ordering relation for itself, I'll feed it into this wood chipper. 3: Hey, look, S is well-ordered.</p>

xkcd

Set Theory


# XKCD

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