What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? p <-> R_4(h_1). forall x: R_4(x) -> ~P_3(x). forall x: P_3(x).
p -> R_4(h_1). R_4(h_1) -> p. forall x: ~R_4(x).