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 x_6 will go running or x_6 will write a letter. For all x_6, if x_6 writes a letter, then x_6 is playing squash. For all x_6, x_6 will cook if and only if x_6 will play squash. For all x_6, x_6 will not go running or x_6 will cook.
There is at least one x_6 for which x_6 will write a letter or x_6 will cook. For all x_6, if x_6 cooks, then x_6 is playing squash. For all x_6, if x_6 plays squash, then x_6 is cooking.