Nat.eq_or_eq_of_totient_eq_totient

∀ {a b : ℕ}, a ∣ b → a.totient = b.totient → a = b ∨ 2 * a = b

Defined in: Mathlib.Data.Nat.Totient
Cited by: 2 results in Mathlib
Foundations: Depth 102 from the axioms · uses propext, Classical.choice, Quot.sound

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