Consider the following premises. For all x_17, x_17 will not make tea. Linda is a musician or Joseph is not making tea. Joseph is making tea if and only if Linda is a musician. Can we infer the following from them? Linda is a musician.
 From the fact that for all x_17, x_17 will not make tea we can infer that Joseph is not making tea. From the fact that Linda is a musician or Joseph is not making tea we can infer that if Joseph makes tea, then Linda is a musician. From the fact that Joseph is making tea if and only if Linda is a musician we can infer that if Linda were a musician, then Joseph is making tea. From the fact that if Joseph makes tea, then Linda is a musician, and that if Linda were a musician, then Joseph is making tea we can infer that Joseph is making tea if and only if Linda is a musician. Finally, from the fact that Joseph is making tea if and only if Linda is a musician, and that Joseph is not making tea we can infer that Linda is not a musician, which contradicts that Linda is a musician. Therefore, the answer is no.