∀ {𝕜 : Type u_2} {E : Type u_6} {ι : Type u_9} [inst : NormedField 𝕜] [inst_1 : AddCommGroup E] [inst_2 : Module 𝕜 E]
  {κ : ι → Type u_11} {p : (i : ι) → SeminormFamily 𝕜 E (κ i)} {t : ι → TopologicalSpace E},
  (∀ (i : ι), WithSeminorms (p i)) → WithSeminorms (SeminormFamily.sigma p)