What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_6, x_6 is a musician. For all x_6, x_6 will climb a mountain or x_6 is not a politician. For all x_6, x_6 will take a plane or x_6 is a politician. For all x_6, if x_6 takes a plane, then x_6 is climbing a mountain.
For all x_6, if x_6 were a politician, then x_6 is climbing a mountain.