Problem

erdos:257

True ↔ ∀ (A : Set ℕ), A.Infinite → Irrational (∑' (n : ↑A), 1 / (2 ^ ↑n - 1))

Open Current State

Declared status: open
Formalization: formalized
Subjects: irrationality
OEIS: N/A
Sources: source:erdos-problemssource:formal-conjectures
Statement: www.erdosproblems.com

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