What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_10, if x_10 cooks, then x_10 is a server. For all x_10, x_10 will not make tea. There is at least one x_10 for which x_10 is a server if and only if x_10 will cook. For all x_10, if x_10 cooks, then x_10 is making tea.
For all x_10, x_10 will not cook. There is at least one x_10 for which if x_10 were a server, then x_10 is cooking. There is at least one x_10 for which if x_10 cooks, then x_10 is a server.