What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x, x will make tea if and only if x will sleep. For all x, x will not drink water. For all x, x will make tea if and only if x will drink water.
For all x, if x makes tea, then x is sleeping. For all x, if x makes tea, then x is drinking water. For all x, if x sleeps, then x is making tea. For all x, if x drinks water, then x is making tea. For all x, x will not make tea.