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 a politician if and only if x_16 is a musician. Karen is a politician if and only if Michael is playing tennis. For all x, x will not play tennis. Linda is climbing a mountain.
If Karen were a politician, then Michael is playing tennis. If Michael plays tennis, then Karen is a politician. For all x_16, if x_16 were a politician, then x_16 is a musician. For all x_16, if x_16 were a musician, then x_16 is a politician.