What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_2, if x_2 makes tea, then x_2 is a scientist. There is at least one x_2 for which x_2 is not a scientist. For all x_2, if x_2 climbs a mountain, then x_2 is making tea.
There is at least one x_2 for which x_2 will not make tea. For all x_2, if x_2 climbs a mountain, then x_2 is a scientist.