∫ Утверждение Mathlib
eq_of_mem_of_mem
Mathlib.Geometry.Euclidean.Sphere.Tangent
URI: https://scilib.ai/kg/mathlib#EuclideanGeometry.Sphere.IsTangentAt.eq_of_mem_of_mem
∫ Утверждение Mathlib
Mathlib.Geometry.Euclidean.Sphere.Tangent
URI: https://scilib.ai/kg/mathlib#EuclideanGeometry.Sphere.IsTangentAt.eq_of_mem_of_mem