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erdos_470.variants.odd_weird_10_pow_21

Specification

Fang [Fa22](https://arxiv.org/abs/2207.12906) has shown there are no odd weird numbers below $10^{21}$.

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Lean 4 Statement 
theorem erdos_470.variants.odd_weird_10_pow_21 : ∀ n < 10 ^ 21, Odd n → ¬n.Weird
ID: ErdosProblems__470__erdos_470.variants.odd_weird_10_pow_21
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