fact: Definition upExtRen_poly_type_term (xi : ( nat ) -> nat ) (zeta : ( nat ) -> nat ) (Eq : forall x, xi x = zeta x) : forall x, (upRen_poly_type_term xi) x = (upRen_poly_type_term zeta) x := fun n => Eq n.
imports: Undecidability.SystemF.Autosubst.unscoped Undecidability.SystemF.SysF Morphisms