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erdos_399.variants.pollack_shapiro

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Pollack and Shapiro proved there are no solutions to `n! = x^4 - 1`.

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Lean 4 Statement 
theorem erdos_399.variants.pollack_shapiro (n x : ℕ) : n ! + 1 ≠ x ^ 4
ID: ErdosProblems__399__erdos_399.variants.pollack_shapiro
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