Mathlib Changelog
v4
Changelog
About
Github
Theorem
InnerProductGeometry.cos_eq_neg_one_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.cos_eq_neg_one_iff_angle_eq_pi
View on Github →