What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y, if y plays a game, then y is an electrician. For all y, if y climbs a mountain, then y is a scientist. There is at least one y for which y will play a game. For all y, if y were an electrician, then y is a scientist.
There is at least one y for which y is an electrician. For all y, if y plays a game, then y is a scientist.