hasDerivWithinAt_abs

∀ (s : Set ℝ) {x : ℝ}, x ≠ 0 → HasDerivWithinAt (fun x => |x|) (↑(SignType.sign x)) s x

Defined in: Mathlib.Analysis.Calculus.Deriv.Abs
Cited by: 0 results in Mathlib
Foundations: Depth 174 from the axioms · uses propext, Classical.choice, Quot.sound

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