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Erdős problem 885

Is it true that, for every k≥1k \geq 1, there exist integers N1<⋯<NkN_1 < \dots < N_k such that ∣∩iD(Ni)∣≥k|\cap_i D(N_i)| \geq k?

Sources

The source's own material, retained exactly.

4 retained statements36c6d0fef71a

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FormalConjectures/ErdosProblems/

885.lean

Retained formal statement3 of 4

Jiménez-Urroz [Ji99] proved this for k=3k=3.

FormalConjectures/ErdosProblems/885.leanErdos885.erdos_885.variants.k_eq_31 lineExact file
∃ Ns, (∀ n ∈ Ns, 1 ≤ n) ∧ Ns.card = 3 ∧ (⋂ n ∈ Ns, Erdos885.factorDifferenceSet n).ncard ≥ 3
SolvedStatement only, no proof