منتديات شباب فلسطين

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Teacher: What is 2k + k?
Student: 3000!

Q: Why do you rarely find mathematicians spending time at the beach?
A: Because they have sine and cosine to get a tan and don't need the sun!

Teacher: "Who can tell me what 7 times 6 is?"
Student: "It's 42!"
Teacher: "Very good! - And who can tell me what 6 times 7 is?"
Same student: "It's 24!"

Q: What does the zero say to the the eight?
A: Nice belt!

Theorem. A cat has nine tails. Proof. No cat has eight tails. Since one cat has one more tail than no cat, it must have nine tails.

Theorem. Every positive integer is interesting. Proof. Assume towards a contradiction that there is an uninteresting positive integer. Then there must be a smallest uninteresting positive integer. But being the smallest uninteresting positive integer is interesting by itself. Contradiction!

A math professor is talking to her little brother who just started his first year of graduate school in mathematics.
"What's your favorite thing about mathematics?" the brother wants to know.
"Knot theory."
"Yeah, me neither."