Consider the following premises. For all x_23, if x_23 were a sailor, then x_23 is making tea. For all x_23, x_23 is rich if and only if x_23 will take a plane. For all x_23, x_23 will not drink water. For all x_23, x_23 is rich if and only if x_23 will make tea. There is at least one x_23 for which x_23 will take a plane if and only if x_23 will drink water. Can we infer the following from them? If we can, name the inference rule being used: For all x_23, x_23 is rich if and only if x_23 will make tea.
That is one of the premises. Therefore, the answer is yes.