What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall z_1: T_3(z_1) or ~P_1(z_1). forall z_1: P_1(z_1) <-> T_4(z_1). forall z_1: ~T_3(z_1).
forall z_1: P_1(z_1) -> T_3(z_1). forall z_1: P_1(z_1) -> T_4(z_1). forall z_1: T_4(z_1) -> P_1(z_1).