∀ {𝕜 : Type u_2} {E : Type u_1} [inst : NontriviallyNormedField 𝕜] [inst_1 : NormedAddCommGroup E]
  [inst_2 : NormedSpace 𝕜 E] (p q : Subspace 𝕜 E), Continuous ⇑((Submodule.subtypeL p).coprod (Submodule.subtypeL q))