Top network posts

• 20 Derivation of a representation through a vector field
• 18 Proof that $\sum_{1}^{\infty} \frac{1}{n^2} <2$
• 17 What is the most unusual proof you know that $\sqrt{2}$ is irrational?
• 12 Calculate limit without L'Hopital
• 11 Example of non-Abelian group with 4, 5, or 6 elements of order 2
• 10 If $p$ and $q$ are prime numbers larger than $2$, then $pq + 1 $ is never prime
• 10 Integrating $\int x\sin x dx$
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