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Theorems · Theorem · number theory

IsPrimitiveRoot.sub_one_dvd_sub

∀ {p : ℕ} {A : Type u_1} {ζ : A} [inst : CommRing A] [inst_1 : IsDomain A],
  IsPrimitiveRoot ζ p →
    Nat.Prime p →
      ∀ {η₁ : A}, η₁ ∈ Polynomial.nthRootsFinset p 1 → ∀ {η₂ : A}, η₂ ∈ Polynomial.nthRootsFinset p 1 → ζ - 1 ∣ η₁ - η₂

If p is prime and ζ is a p-th primitive root of unity, then ζ - 1 divides η₁ - η₂ for all p-th roots of unity η₁ and η₂.

Defined in
Mathlib.RingTheory.RootsOfUnity.CyclotomicUnits
Cited by
0 results in Mathlib
Foundations
Depth 143 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CommRingIsDomain

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