Consider the following premises. For all z_1, if z_1 plays squash, then z_1 is a nurse. There is at least one z_1 for which z_1 is a nurse if and only if z_1 is curious. For all z_1, z_1 is not curious. For all z_1, if z_1 were a nurse, then z_1 is playing squash. Can we infer the following from them? For all z_1, z_1 will play squash.
 From the fact that for all z_1, if z_1 were a nurse, then z_1 is playing squash, and that for all z_1, if z_1 plays squash, then z_1 is a nurse we can infer that for all z_1, z_1 is a nurse if and only if z_1 will play squash. From the fact that there is at least one z_1 for which z_1 is a nurse if and only if z_1 is curious, and that for all z_1, z_1 is not curious we can infer that there is at least one z_1 for which z_1 is not a nurse. Finally, from the fact that for all z_1, z_1 is a nurse if and only if z_1 will play squash, and that there is at least one z_1 for which z_1 is not a nurse we can infer that there is at least one z_1 for which z_1 will not play squash, which contradicts that For all z_1, z_1 will play squash. Therefore, the answer is no.