What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_13, x_13 will take a plane if and only if x_13 is a carpenter. For all x_13, x_13 is not a soldier. There is at least one x_13 for which if x_13 were a carpenter, then x_13 is an electrician. For all x_13, x_13 is a soldier if and only if x_13 is an electrician. For all x_13, if x_13 were an electrician, then x_13 is taking a plane.
There is at least one x_13 for which if x_13 were a carpenter, then x_13 is taking a plane. For all x_13, if x_13 takes a plane, then x_13 is a carpenter. For all x_13, if x_13 were a soldier, then x_13 is an electrician. For all x_13, if x_13 were a carpenter, then x_13 is taking a plane. For all x_13, if x_13 were an electrician, then x_13 is a soldier. For all x_13, x_13 is not an electrician.