∀ {B : Type u_1} {F : Type u_2} {Z : Type u_4} [inst : TopologicalSpace B] [inst_1 : TopologicalSpace F] {proj : Z → B}
  [inst_2 : TopologicalSpace Z] {e e' : Bundle.Trivialization F proj},
  e = e' ↔ e.toOpenPartialHomeomorph = e'.toOpenPartialHomeomorph ∧ e.baseSet = e'.baseSet