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Theorems · Theorem · complex analysis

AnalyticWithinAt.im_ofReal

∀ {f : ℂ → ℂ} {s : Set ℝ} {x : ℝ},
  AnalyticWithinAt ℂ f (Complex.ofReal '' s) ↑x → AnalyticWithinAt ℝ (fun x => (f ↑x).im) s x
Defined in
Mathlib.Analysis.SpecialFunctions.Complex.Analytic
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Foundations
Depth 187 from the axioms · uses propext, Classical.choice, Quot.sound

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