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_10 for which x_10 will work if and only if x_10 is an artist. For all x_10, if x_10 were a carpenter, then x_10 is working. For all x_10, if x_10 works, then x_10 is a carpenter.
For all x_10, x_10 is a carpenter if and only if x_10 will work. For all x_10, x_10 will work if and only if x_10 is a carpenter. There is at least one x_10 for which if x_10 works, then x_10 is an artist. There is at least one x_10 for which if x_10 were an artist, then x_10 is working.