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Theorems · Theorem · complex analysis

HasFPowerSeriesAt.eq_zero_of_eventually

∀ {𝕜 : Type u_1} [inst : NontriviallyNormedField 𝕜] {E : Type u_2} [inst_1 : NormedAddCommGroup E]
  [inst_2 : NormedSpace 𝕜 E] {p : FormalMultilinearSeries 𝕜 𝕜 E} {f : 𝕜 → E} {x : 𝕜},
  HasFPowerSeriesAt f p x → f =ᶠ[nhds x] 0 → p = 0

A one-dimensional formal multilinear series representing a locally zero function is zero.

Defined in
Mathlib.Analysis.Analytic.Uniqueness
Cited by
1 results in Mathlib
Foundations
Depth 177 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
NontriviallyNormedFieldNormedAddCommGroupNormedSpace

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