Consider the following premises. If Jessica were curious, then Jessica is a sailor. Patricia is not bored or Jessica is curious. Joseph is climbing a mountain if and only if Jessica is a sailor. Patricia is bored or Joseph is climbing a mountain. Can we infer the following from them? Jessica is not a sailor.
 From the fact that Joseph is climbing a mountain if and only if Jessica is a sailor we can infer that if Joseph climbs a mountain, then Jessica is a sailor. From the fact that Patricia is bored or Joseph is climbing a mountain, and that Patricia is not bored or Jessica is curious we can infer that Joseph is climbing a mountain or Jessica is curious. Finally, from the fact that if Joseph climbs a mountain, then Jessica is a sailor, that if Jessica were curious, then Jessica is a sailor, and that Joseph is climbing a mountain or Jessica is curious we can infer that Jessica is a sailor, which contradicts that Jessica is not a sailor. Therefore, the answer is no.