[xkcd] Trick Play

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I've been trying to find out whether the Laws of the Game take the axiom of choice or not, but FIFA officials keep blocking my number.

🔗 xkcd.com/3282 · #3282

Why it resonates: When you're deep enough in set theory to wonder whether real-world rule systems implicitly assume the axiom of choice, you've officially crossed from mathematician into the special kind of person who also writes formal specifications for their grocery lists.

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• expires on Aug 16, 2026, 9:24 AM UTC