cos_nonneg_of_neg_pi_div_two_le_of_le — Mathlib · SciLib

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cos_nonneg_of_neg_pi_div_two_le_of_le

Mathlib.Analysis.SpecialFunctions.Trigonometric.Basic

URI: https://scilib.ai/kg/mathlib#Real.cos_nonneg_of_neg_pi_div_two_le_of_le

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