Top network posts

• 71 Does $G\cong G/H$ imply that $H$ is trivial?
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• 49 Prove that $\lfloor0.999\dots\rfloor= ?$ $0$ or $1$?
• 45 Why doesn't $0$ being a prime ideal in $\mathbb Z$ imply that $0$ is a prime number?
• 42 When to learn category theory?
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• 39 How to tell if some power of my integer matrix is the identity?
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