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Fedor Petrov's user avatar
Fedor Petrov's user avatar
Fedor Petrov's user avatar
Fedor Petrov
  • Member for 13 years, 9 months
  • Last seen more than 2 years ago
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167
17 camels trick
69
integral of a "sin-omial" coefficients=binomial
59
Examples of notably long or difficult proofs that only improve upon existing results by a small amount
54
Most elementary proof showing that exponential growth wins against polynomial growth
54
If any open set is a countable union of balls, does it imply separability?

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