∀ {𝕜 : Type u_1} {E : Type u_2} [inst : TopologicalSpace E] [inst_1 : AddCommMonoid E] [inst_2 : SeminormedRing 𝕜]
  [inst_3 : SMul 𝕜 E] [inst_4 : PartialOrder 𝕜] (s : AbsConvexOpenSets 𝕜 E), IsOpen ↑s