Mathlib v3 is deprecated. Go to Mathlib v4

Theorem orthonormal.oangle_eq_neg_of_orientation_eq_neg

Modification history

2022-09-30 21:28
src/geometry/euclidean/oriented_angle.lean
feat(analysis/inner_product/orientation, geometry/euclidean/oriented_angle): use bundled orthonormal bases (#16475) …
Deleted orthonormal.oangle_eq_neg_of_orientation_eq_negView on Github →
2022-02-21 15:30
src/geometry/euclidean/oriented_angle.lean
feat(geometry/euclidean/oriented_angle): oriented angles and rotations (#12106) …
Added orthonormal.oangle_eq_neg_of_orientation_eq_negView on Github →