{X : Type u_3} →
  [inst : TopologicalSpace X] →
    {motive : R1Space X → Sort u} →
      (t : R1Space X) →
        ((specializes_or_disjoint_nhds : ∀ (x y : X), x ⤳ y ∨ Disjoint (nhds x) (nhds y)) → motive ⋯) → motive t