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 writer or x_6 will not cook. For all x_6, if x_6 plays tennis, then x_6 is a writer. For all x_6, x_6 will play tennis or x_6 will cook. For all x_6, x_6 will climb a mountain.
For all x_6, if x_6 cooks, then x_6 is a writer.