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erdos_1049.variants.geq_2_integer
Specification
Erdős [Er48] proved that this is true if $t\geq 2$ is an integer.
Lean 4 Statement
theorem erdos_1049.variants.geq_2_integer :
∀ t : ℤ, t ≥ 2 → Irrational (∑' n : ℕ+, 1 / ((t : ℝ) ^ (n : ℕ) - 1))
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