What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? p -> P_9(f). forall x_9: P_9(x_9) <-> T_1(x_9). p or T_1(f).
R_1(f) -> p. forall x_9: P_9(x_9) -> T_1(x_9). forall x_9: T_1(x_9) -> P_9(x_9).