A web comic of romance, sarcasm, math, and language.
New store item: [citation needed] stickers, for marking dubious printed claims in real life.
Scene: A stick figure with a pony tail is standing in front of a white board and holding a pointer in one hand. The white board has set theory figures written on it, like “x is an element of S.”
Person One: “The axiom of choice allows you to select one element from each set in a collection–and have it executed as an example to the others.”
Caption: My math teacher was a big believer in proof by intimidation.
Hover text: 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.”
Warning: this comic occasionally contains strong language (which may be unsuitable for children), unusual humor (which may be unsuitable for adults), and advanced mathematics (which may be unsuitable for liberal-arts majors).
Comic by xkcd.com. Described by BlindGadget under the Creative Commons license.
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