∀ (toGlueData : CategoryTheory.GlueData TopCat)
  (f_open : ∀ (i j : toGlueData.J), Topology.IsOpenEmbedding ⇑(CategoryTheory.ConcreteCategory.hom (toGlueData.f i j)))
  (toGlueData_1 : CategoryTheory.GlueData TopCat)
  (f_open_1 :
    ∀ (i j : toGlueData_1.J), Topology.IsOpenEmbedding ⇑(CategoryTheory.ConcreteCategory.hom (toGlueData_1.f i j))),
  ({ toGlueData := toGlueData, f_open := f_open } = { toGlueData := toGlueData_1, f_open := f_open_1 }) =
    (toGlueData = toGlueData_1)