Math Jokes

Joke: Do you believe in one God?
Mathematician: Yes, up to isomorphism!

Joke: An onion field is a commutative onion ring in which every nonzero onion has an inverse.

Joke: How many topologists does it take to screw in a light bulb?

Joke: A man and his wife are both mathematicians. He is leaving for the store so he asks his wife if she wants anything. She yells in his face, "4!"

He wonders why she yelled at him, but thinks for a moment and brings back two dozen eggs.

Joke: What is everybody's favorite aspect of mathematics?