What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_10, x_10 will not sleep. For all x_10, x_10 will sleep or x_10 is fast. For all x_10, x_10 will play a game if and only if x_10 is a mechanic. There is at least one x_10 for which if x_10 plays a game, then x_10 is not fast.
For all x_10, x_10 is fast. For all x_10, if x_10 plays a game, then x_10 is a mechanic. For all x_10, if x_10 were a mechanic, then x_10 is playing a game.