∀ {B : Type u} (F : Type v) (E : B → Type w₁) {B' : Type w₂} [inst : TopologicalSpace B']
  [inst_1 : TopologicalSpace (Bundle.TotalSpace F E)] [inst_2 : TopologicalSpace F] [inst_3 : TopologicalSpace B]
  [inst_4 : (x : B) → TopologicalSpace (E x)] [FiberBundle F E] {f : B' → B} {x : B'},
  Continuous (Bundle.TotalSpace.mk x)