Problem

erdos:1210

True ↔ ∃ C, ∀ (n : ℕ) (A : Finset ℕ), (∀ a ∈ A, 1 ≤ a ∧ a < n) → (∀ a ∈ A, ∀ b ∈ A, a ≠ b → a.Coprime b) → ∑ a ∈ A, 1 / (↑n - ↑a) ≤ ∑ p ∈ Finset.range n with Prime p, 1 / ↑p + C

Open Current State

Declared status: open
Formalization: formalized
Subjects: number theory
OEIS: possible
Sources: source:erdos-problemssource:formal-conjectures
Statement: www.erdosproblems.com

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