{α : Type u_8} →
  {β : Type u_9} →
    [inst : SupSet α] →
      [inst_1 : SupSet β] →
        {motive : sSupHom α β → Sort u} →
          (t : sSupHom α β) →
            ((toFun : α → β) →
                (map_sSup' : ∀ (s : Set α), toFun (sSup s) = sSup (toFun '' s)) →
                  motive { toFun := toFun, map_sSup' := map_sSup' }) →
              motive t