∀ {V : Type u_1} {P : Type u_2} [inst : NormedAddCommGroup V] [inst_1 : InnerProductSpace ℝ V] [inst_2 : MetricSpace P]
  [inst_3 : NormedAddTorsor V P] {as : AffineSubspace ℝ P} {s : EuclideanGeometry.Sphere P} {p : P},
  as ∈ s.tangentsFrom p → p ∈ as