right_ne_zero_of_oangle_eq_neg_pi_div_two — Mathlib · SciLib

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right_ne_zero_of_oangle_eq_neg_pi_div_two

Mathlib.Geometry.Euclidean.Angle.Oriented.Basic

URI: https://scilib.ai/kg/mathlib#Orientation.right_ne_zero_of_oangle_eq_neg_pi_div_two

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