Mathlib Changelog
v4
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Theorem
HasDerivAt.arctan
Modification history
2023-06-07 00:58
Mathlib/Analysis/SpecialFunctions/Trigonometric/ArctanDeriv.lean
feat: port Analysis.SpecialFunctions.Trigonometric.ArctanDeriv (#4764)
Added
HasDerivAt.arctan
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