Consider the following premises. For all x_14, x_14 will cook if and only if x_14 will play squash. Charles is not playing squash. Charles is cooking or Linda is a cashier. Can we infer the following from them? Patricia is an artist or Linda is a cashier.
 From the fact that for all x_14, x_14 will cook if and only if x_14 will play squash we can infer that Charles is cooking if and only if Charles is playing squash. From the fact that Charles is cooking if and only if Charles is playing squash, and that Charles is not playing squash we can infer that Charles is not cooking. From the fact that Charles is not cooking we can infer that Charles is not cooking or Patricia is an artist. Finally, from the fact that Charles is not cooking or Patricia is an artist, and that Charles is cooking or Linda is a cashier we can infer that Patricia is an artist or Linda is a cashier. Therefore, the answer is yes.