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