What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all z_1, z_1 will play squash if and only if z_1 is a poet. Jennifer is playing squash if and only if Jennifer is a poet.
If Jennifer plays squash, then Jennifer is a poet. If Jennifer were a poet, then Jennifer is playing squash. For all z_1, if z_1 plays squash, then z_1 is a poet. For all z_1, if z_1 were a poet, then z_1 is playing squash.