What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y, y is poor if and only if y is an electrician. For all y, y is a server if and only if y will play squash. For all y, y is an electrician if and only if y will play squash. For all y, y is not poor.
For all y, if y were poor, then y is an electrician. For all y, if y were a server, then y is playing squash. For all y, if y were an electrician, then y is playing squash. For all y, if y were an electrician, then y is poor. For all y, if y plays squash, then y is a server. For all y, if y plays squash, then y is an electrician. For all y, y is not an electrician.