∀ {𝕜 : Type u_1} {V : Type u_2} [inst : Field 𝕜] [inst_1 : LinearOrder 𝕜] [IsStrictOrderedRing 𝕜]
  [inst_3 : AddCommGroup V] [inst_4 : Module 𝕜 V] {s : Set V} {x y : V} [inst_5 : TopologicalSpace 𝕜] [OrderTopology 𝕜]
  [inst_7 : TopologicalSpace V] [IsTopologicalAddGroup V] [ContinuousSMul 𝕜 V],
  IsVisible 𝕜 s x y → y ∈ interior s → x = y