What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_4, if x_4 were a poet, then x_4 is climbing a mountain. For all x_4, x_4 will climb a mountain if and only if x_4 will cook. For all x_4, x_4 will cook or x_4 is a poet.
For all x_4, if x_4 climbs a mountain, then x_4 is cooking. For all x_4, if x_4 cooks, then x_4 is climbing a mountain.