Problem

erdos:403

True ↔ {p | (∀ a ∈ p.2, 0 < a) ∧ 2 ^ p.1 = ∑ a ∈ p.2, a.factorial}.Finite

Open Current State

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

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