Top network posts

• 120 Why did no student correctly find a pair of $2\times 2$ matrices with the same determinant and trace that are not similar?
• 100 Is there any conjecture that we know is provable/disprovable but we haven't found a proof of yet?
• 89 Simplicial Complex vs Delta Complex vs CW Complex
• 84 How to represent "not an empty set"?
• 73 Prime number construction game
• 69 If polynomials are almost surjective over a field, is the field algebraically closed?
• 60 What are some reasonable-sounding statements that are independent of ZFC?
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