Consider the following premises. Thomas is a cashier if and only if it is cold. If it snows, then it is cold. It is snowing. Can we infer the following from them? It is cold.
 From the fact that it is snowing we can infer that it is snowing or Thomas is a cashier. From the fact that Thomas is a cashier if and only if it is cold we can infer that if Thomas were a cashier, then it is cold. Finally, from the fact that if it snows, then it is cold, that if Thomas were a cashier, then it is cold, and that it is snowing or Thomas is a cashier we can infer that it is cold. Therefore, the answer is yes.