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 will make tea or x_6 will play squash. For all x_6, x_6 will not make tea or x_6 will write a letter. For all x_6, if x_6 writes a letter, then x_6 is rich. For all x_6, x_6 will play squash if and only if x_6 is rich.
For all x_6, x_6 will play squash or x_6 will write a letter. For all x_6, if x_6 plays squash, then x_6 is rich. For all x_6, if x_6 were rich, then x_6 is playing squash.