Theorem InnerProductGeometry.cos_eq_zero_iff_angle_eq_pi_div_two

Modification history

2023-05-26 12:18
Mathlib/Geometry/Euclidean/Angle/Unoriented/Basic.lean
feat: port Geometry.Euclidean.Angle.Unoriented.Basic (#4376)
Added InnerProductGeometry.cos_eq_zero_iff_angle_eq_pi_div_twoView on Github →