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Theorems · Theorem · number theory

ArithmeticFunction.ofPowerSeries_pow

∀ {R : Type u_1} [inst : CommRing R] (q : ℕ) {k : ℕ},
  k ≠ 0 →
    ∀ (f : PowerSeries R),
      (ArithmeticFunction.ofPowerSeries (q ^ k)) f =
        (ArithmeticFunction.ofPowerSeries q) (PowerSeries.subst (PowerSeries.X ^ k) f)

In ArithmeticFunction.ofPowerSeries, replacing the base q with a power q ^ k corresponds to substituting X with X ^ k in the original power series.

Defined in
Mathlib.NumberTheory.ArithmeticFunction.LFunction
Cited by
1 results in Mathlib
Foundations
Depth 113 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CommRing

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