What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_2, x_2 will work if and only if x_2 is a bartender. For all x_2, x_2 is not a bartender. For all x_2, x_2 is a bartender if and only if x_2 will work.
For all x_2, if x_2 works, then x_2 is a bartender. For all x_2, if x_2 were a bartender, then x_2 is working. For all x_2, if x_2 were a bartender, then x_2 is working. For all x_2, if x_2 works, then x_2 is a bartender. For all x_2, x_2 will not work. For all x_2, x_2 will not work.