What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_14, x_14 will write a letter if and only if x_14 will drive a car. Karen is driving a car or Jennifer is working. Karen is writing a letter or Jennifer is not working.
If Jennifer works, then Karen is writing a letter. For all x_14, if x_14 writes a letter, then x_14 is driving a car. For all x_14, if x_14 drives a car, then x_14 is writing a letter.