What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_12, x_12 is rich if and only if x_12 will drink water. Linda is rich or it is not raining. Linda is not drinking water.
If it rains, then Linda is rich. For all x_12, if x_12 were rich, then x_12 is drinking water. For all x_12, if x_12 drinks water, then x_12 is rich.