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