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Theorems · Theorem · number theory

IsPrimitiveRoot.self_sub_one_pow_dvd_order

∀ {R : Type u_1} [inst : CommRing R] [IsDomain R] {k n : ℕ},
  k < n → ∀ {μ : R}, IsPrimitiveRoot μ n → ∃ z ∈ ℤ[μ], ↑n = z * (μ - 1) ^ k

If μ is a primitive nth root of unity in R and k < n, then n is divisible by (μ-1)^k in ℤ[μ] ⊆ R.

Defined in
Mathlib.RingTheory.RootsOfUnity.Lemmas
Cited by
1 results in Mathlib
Foundations
Depth 145 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CommRingIsDomain

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