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Theorems · Theorem · number theory

gaussSum_eq_zero_of_isPrimitive_of_not_isPrimitive

∀ {N : ℕ} [inst : NeZero N] {R : Type u_1} [inst_1 : CommRing R] (e : AddChar (ZMod N) R) [IsDomain R]
  {χ : DirichletCharacter R N}, χ.IsPrimitive → ¬e.IsPrimitive → gaussSum χ e = 0

If χ is primitive, but e is not, then gaussSum χ e = 0.

Defined in
Mathlib.NumberTheory.DirichletCharacter.GaussSum
Cited by
1 results in Mathlib
Foundations
Depth 90 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
NeZeroCommRingIsDomain

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