Sort u →
  {ι : Type u_5} →
    {B : Type u_6} →
      [inst : TopologicalSpace B] →
        {F : Type u_7} →
          [inst_1 : TopologicalSpace F] →
            FiberBundleCore ι B F →
              {ι' : Type u_5} →
                {B' : Type u_6} →
                  [inst' : TopologicalSpace B'] →
                    {F' : Type u_7} → [inst'_1 : TopologicalSpace F'] → FiberBundleCore ι' B' F' → Sort u