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Real.Angle.abs_cos_eq_of_two_nsmul_eq
Modification history
2023-05-17 11:25
Mathlib/Analysis/SpecialFunctions/Trigonometric/Angle.lean
feat: port Analysis.SpecialFunctions.Trigonometric.Angle (#4040)
Added
Real.Angle.abs_cos_eq_of_two_nsmul_eq
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