What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_16, x_16 is not fast. For all x_16, x_16 is curious if and only if x_16 will work. There is at least one x_16 for which x_16 is fast.
For all x_16, if x_16 were curious, then x_16 is working. For all x_16, if x_16 works, then x_16 is curious.