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theorem proved term proof

liouville_zero

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formal statement (Lean)

 288@[simp] theorem liouville_zero : liouville 0 = 0 := by

proof body

Term-mode proof.

 289  simp [liouville]
 290
 291/-- λ(n) = (-1)^Ω(n) for n ≠ 0. -/

depends on (2)

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