hasStrictDerivAt_abs

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

Defined in: Mathlib.Analysis.Calculus.Deriv.Abs
Cited by: 2 results in Mathlib
Foundations: Depth 172 from the axioms · uses propext, Classical.choice, Quot.sound

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