What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_15: R(x_15) <-> Q_14(x_15). forall x_15: P_15(x_15) -> R_4(x_15). forall x_15: Q_14(x_15). forall x_15: P_15(x_15).
forall x_15: R_4(x_15). forall x_15: Q_14(x_15) and P_15(x_15). forall x_15: P_15(x_15) and Q_14(x_15). exists x_15: R(x_15) -> Q_14(x_15). exists x_15: Q_14(x_15) -> R(x_15).