Top network posts

• 28 Proof that an integral domain that is a finite-dimensional $F$-vector space is in fact a field
• 16 What's the simplest rational not expressible as a sum of a given number of unit fractions?
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• 11 Is a red-black tree my ideal data structure?
• 10 Stepping through all permutations one swap at a time
• 10 A balls-and-colours problem
• 5 Are there primes p, q such that p^4+1 = 2q^2 ?
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