theorem proved term proof

`mobius_onehundredfive`

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formal statement (Lean)

1119theorem mobius_onehundredfive : mobius 105 = -1 := by native_decide

Term-mode proof.

1120
1121/-- μ(210) = 1 (squarefree with 4 prime factors). -/

Lean names referenced from this declaration's body.

mobius in IndisputableMonolith.NumberTheory.Primes.ArithmeticFunctions decl_use