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Erdős problem 1190

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Let ϵm=max⁡∑1ni\epsilon_m=\max \sum \frac{1}{n_i} where the maximum is taken over all finite sequences m<n1<⋯<nkm<n_1<\cdots<n_k for which there exist congruences ai(modni)a_i\pmod{n_i} such that no integer satisfies two such congruences.

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  2. StatementRetained
  3. Formal5 retained
  4. Resolutionsolved (Lean)
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  6. DecisionNone here
  7. The questionNot reached
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Number Theory576Covering Systems22
Erdős problem 321accepted
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