∫ Утверждение Mathlib
differentiable_arctan
Mathlib.Analysis.SpecialFunctions.Trigonometric.ArctanDeriv
URI: https://scilib.ai/kg/mathlib#Real.differentiable_arctan
∫ Утверждение Mathlib
Mathlib.Analysis.SpecialFunctions.Trigonometric.ArctanDeriv
URI: https://scilib.ai/kg/mathlib#Real.differentiable_arctan