Consider the following premises. If Jessica were bored, then it is windy. If it is windy, then Jessica is bored. William is a lawyer if and only if Jessica is bored. Can we infer the following from them? The fact that it is windy does not imply that William is a lawyer.
 From the fact that if Jessica were bored, then it is windy, and that if it is windy, then Jessica is bored we can infer that Jessica is bored if and only if it is windy. From the fact that William is a lawyer if and only if Jessica is bored we can infer that if Jessica were bored, then William is a lawyer. From the fact that Jessica is bored if and only if it is windy we can infer that if it is windy, then Jessica is bored. Finally, from the fact that if it is windy, then Jessica is bored, and that if Jessica were bored, then William is a lawyer we can infer that if it is windy, then William is a lawyer, which contradicts that The fact that it is windy does not imply that William is a lawyer. Therefore, the answer is no.