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Theorems · Theorem · number theory

jacobiSum_nontrivial_inv

∀ {F : Type u_1} {R : Type u_2} [inst : Field F] [inst_1 : Fintype F] [inst_2 : CommRing R] [IsDomain R]
  {χ : MulChar F R}, χ ≠ 1 → jacobiSum χ χ⁻¹ = -χ (-1)

If χ is a nontrivial multiplicative character on a finite field F, then J(χ,χ⁻¹) = -χ(-1).

Defined in
Mathlib.NumberTheory.JacobiSum.Basic
Cited by
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Foundations
Depth 86 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
FieldFintypeCommRingIsDomain

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