Nat.totient_eq_iff_prime

∀ {p : ℕ}, 0 < p → (p.totient = p - 1 ↔ Nat.Prime p)

Defined in: Mathlib.Data.Nat.Totient
Cited by: 1 results in Mathlib
Foundations: Depth 80 from the axioms · uses propext, Classical.choice, Quot.sound

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