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Erdős problem 332

Let ANA\subseteq \mathbb{N} and D(A)D(A) be the set of those numbers which occur infinitely often as a1a2a_1 - a_2 with a1,a2Aa_1, a_2\in A. What conditions on AA are sufficient to ensure D(A)D(A) has bounded gaps?

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FormalConjectures/ErdosProblems/332.lean

Formal Conjectures

FormalConjectures/ErdosProblems/332.leanErdos332.erdos_3321 lineExact file
∀ (A : Set ℕ), sorry AErdos332.HasBoundedGaps (Erdos332.D_A A)
OpenStatement only, no proof

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