Top network posts

• 86 Is there an intuitive reason for a certain operation to be associative?
• 53 Has BLM raised over 1 billion dollars but not yet performed any neighborhood cleanup, school funding, food aid or housing services?
• 31 Limit of sequence in which each term is defined by the average of preceding two terms
• 20 Should I cite a paper that I haven't read if I use a theorem in it?
• 17 How to find a 3x3 matrix with determinant =0 from which I can delete random column and random row to make it nonzero?
• 12 Function with infinitely many right inverses?
• 12 If $\det(A^2)= \det(A)$, then $A^2 \in \{A, A^{-1}, -A, -A^{-1}\}$
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