What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_8 for which x_8 will work if and only if x_8 is a bartender. For all x_8, if x_8 works, then x_8 is an electrician. For all x_8, x_8 is not an astronaut. For all x_8, x_8 is an electrician if and only if x_8 is an astronaut.
For all x_8, if x_8 were an electrician, then x_8 is an astronaut. There is at least one x_8 for which if x_8 works, then x_8 is a bartender. For all x_8, if x_8 were an astronaut, then x_8 is an electrician. There is at least one x_8 for which if x_8 were a bartender, then x_8 is working. For all x_8, x_8 is not an electrician.