Consider the following premises. For all x_11, x_11 is a carpenter if and only if x_11 will make tea. For all x_11, x_11 will make tea if and only if x_11 is a carpenter. Can we infer the following from them? If we can, name the inference rule being used: The fact that Joseph were a carpenter does not imply that Joseph is making tea.
That contradicts the premises. Therefore the answer is no.