Principle of Explosion
Permanent link to this comic: https://xkcd.com/704/
Image URL (for hotlinking/embedding): https://imgs.xkcd.com/comics/principle_of_explosion.png
[[Two men appear, conversing with one another]]
First Man: If you assume contradictory axioms, you can derive anything. It's called the Principle of Explosion.
Second Man: ANYTHING? Lemme try.
[[The second man writes on a piece of paper on a counter.]]
[[The two men appear again, the second man holding his paper and a mobile phone.]]
Second Man: Hey, you're right! I started with P⧬P and derived your mom's phone number!
First Man: That's not how that works.
[[The first man holds the piece of paper, while the second man is now talking on the mobile phone.]]
Second Man: Mrs. Lenhart?
First Man: Wait, this IS her number! How--
Second Man: Hi, I'm a friend of--why, yes, I AM free tonight!
First Man: MOM!
Second Man: No, box wine sounds lovely!
{{Title text: You want me to pick up waffle cones? Oh, right, for the wine. One sec, let me just derive your son's credit card number and I'll be on my way.}}