What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_6 for which if x_6 were a mechanic, then x_6 is not an artist. For all x_6, x_6 will write a letter. For all x_6, x_6 will climb a mountain. For all x_6, if x_6 climbs a mountain, then x_6 is an artist.
For all x_6, x_6 is an artist. For all x_6, x_6 will write a letter and x_6 will climb a mountain. For all x_6, x_6 will climb a mountain and x_6 will write a letter.