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Theorems · Theorem · complex analysis

Complex.tendsto_one_add_cpow_exp_of_tendsto

∀ {g : ℝ → ℂ} {t : ℂ},
  Filter.Tendsto (fun x => ↑x * g x) Filter.atTop (nhds t) →
    Filter.Tendsto (fun x => (1 + g x) ^ ↑x) Filter.atTop (nhds (Complex.exp t))

The limit of (1 + g x) ^ x as (x : ℝ) → ∞ is exp t, where t : ℂ is the limit of x * g x.

Defined in
Mathlib.Analysis.SpecialFunctions.Complex.LogBounds
Cited by
3 results in Mathlib
Foundations
Depth 276 from the axioms · uses propext, Classical.choice, Quot.sound

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