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erdos_961.erdos_upper_bound
Specification
Erdos [Er55d] proved $f(k) < 3 \frac{k}{\log k}$ for sufficiently large $k$.
Lean 4 Statement
theorem erdos_961.erdos_upper_bound :
∀ᶠ k in atTop, f k < 3 * k / log k
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