Theorem InnerProductGeometry.norm_sub_eq_add_norm_iff_angle_eq_pi

Modification history

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