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Paweł Czyż's user avatar
Paweł Czyż's user avatar
Paweł Czyż's user avatar
Paweł Czyż
  • Member for 6 years, 8 months
  • Last seen more than 4 years ago
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18
Finding derivative of $\sqrt[3]{\sin(2x)}$ using only definition of derivative
16
Unexpected use of topology in proofs
9
Why is there no functor $\mathsf{Group}\to\mathsf{AbGroup}$ sending groups to their centers?
9
Is the diffeomorphism group of the Euclidean space generated by two simpler subgroups?
8
Is the equivalence between tangent and cotangent bundles canonical for algebraic topologists?