Consider the following premises. Jessica is an office clerk or it is snowing. For all x_16, if x_16 were an office clerk, then x_16 is not fast. For all x_16, x_16 is fast. It is late. Can we infer the following from them? If we can, name the inference rule being used: It is not snowing.
 From the fact that for all x_16, if x_16 were an office clerk, then x_16 is not fast, and that for all x_16, x_16 is fast we can infer that for all x_16, x_16 is not an office clerk via universal modus tollens. From the fact that for all x_16, x_16 is not an office clerk we can infer that Jessica is not an office clerk via universal instantiation. Finally, from the fact that Jessica is an office clerk or it is snowing, and that Jessica is not an office clerk we can infer that it is snowing via disjunctive syllogism, which contradicts that It is not snowing. Therefore, the answer is no.