Theorem EuclideanGeometry.Sphere.isExtTangent_iff_dist_center

Modification history

2025-03-31 15:58
Mathlib/Geometry/Euclidean/Sphere/Tangent.lean
feat(Geometry/Euclidean/Sphere/Tangent): tangents to spheres (#22483) …
Added EuclideanGeometry.Sphere.isExtTangent_iff_dist_centerView on Github →