Consider the following premises. For all x_17, x_17 is a bartender. For all x_17, x_17 is a server if and only if x_17 is a bartender. Can we infer the following from them? Patricia is a server or it is cold.
 From the fact that for all x_17, x_17 is a server if and only if x_17 is a bartender we can infer that for all x_17, if x_17 were a bartender, then x_17 is a server. From the fact that for all x_17, if x_17 were a bartender, then x_17 is a server, and that for all x_17, x_17 is a bartender we can infer that for all x_17, x_17 is a server. From the fact that for all x_17, x_17 is a server we can infer that Patricia is a server. Finally, from the fact that Patricia is a server we can infer that Patricia is a server or it is cold. Therefore, the answer is yes.