What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_11, x_11 will cook if and only if x_11 is rich. For all x_11, x_11 will not drive a car. There is at least one x_11 for which x_11 will drive a car if and only if x_11 is rich.
For all x_11, if x_11 cooks, then x_11 is rich. There is at least one x_11 for which if x_11 drives a car, then x_11 is rich. For all x_11, if x_11 were rich, then x_11 is cooking. There is at least one x_11 for which if x_11 were rich, then x_11 is driving a car. There is at least one x_11 for which x_11 is not rich.