What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_1, if x_1 were a politician, then x_1 is playing a game. For all x_1, x_1 will play a game if and only if x_1 is fast. For all x_1, if x_1 were fast, then x_1 is a politician.
For all x_1, if x_1 were fast, then x_1 is playing a game. For all x_1, if x_1 plays a game, then x_1 is fast. For all x_1, if x_1 were fast, then x_1 is playing a game.