Problem

erdos:347

True ↔ ∃ a, Monotone a ∧ Filter.Tendsto (fun n => ↑(a (n + 1)) / ↑(a n)) Filter.atTop (nhds 2) ∧ ∀ (ι : ℕ → ℕ), (Set.range ι)ᶜ.Finite → (subsetSums (Set.range (a ∘ ι))).HasDensity 1

Open Current State

Declared status: proved (Lean)
Formalization: formalized
Subjects: number theorycomplete sequences
OEIS: N/A
Sources: source:erdos-ai-contributions-wikisource:erdos-problemssource:formal-conjecturessource:jayyhk-erdos-leansource:plby-lean-proofssource:vibemathed
Statement: www.erdosproblems.com

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