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erdos_350

Specification

If `A ⊂ ℕ` is a finite set of integers all of whose subset sums are distinct then `∑ n ∈ A, 1/n < 2`. Proved by Ryavec.

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Lean 4 Statement 
theorem erdos_350 (A : Finset ℕ) (hA : DecidableDistinctSubsetSums A) :
    ∑ n ∈ A, (1 / n : ℝ) < 2
ID: ErdosProblems__350__erdos_350
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