What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_3, if x_3 makes tea, then x_3 is playing squash. For all x_3, x_3 is a police officer or x_3 will make tea. For all x_3, x_3 is a police officer if and only if x_3 will play squash.
For all x_3, if x_3 were a police officer, then x_3 is playing squash. For all x_3, if x_3 plays squash, then x_3 is a police officer.