Consider the following premises. Karen is not playing a game. Thomas is a scientist if and only if it is snowing. For all x_14, if x_14 were an office clerk, then x_14 is playing a game. It is not snowing. Can we infer the following from them? Karen is an office clerk.
 From the fact that Thomas is a scientist if and only if it is snowing, and that it is not snowing we can infer that Thomas is not a scientist. From the fact that for all x_14, if x_14 were an office clerk, then x_14 is playing a game we can infer that if Karen were an office clerk, then Karen is playing a game. Finally, from the fact that if Karen were an office clerk, then Karen is playing a game, and that Karen is not playing a game we can infer that Karen is not an office clerk, which contradicts that Karen is an office clerk. Therefore, the answer is no.