∀ {ι : Type u_1} {R : ι → Type u_2} {A : (i : ι) → Set (R i)} {𝓕 : Filter ι} [inst : (i : ι) → TopologicalSpace (R i)]
  {S : Set ι} (hS : 𝓕 ≤ Filter.principal S), Topology.IsEmbedding (RestrictedProduct.inclusion R A hS)