What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Jennifer is a carpenter if and only if Linda is playing a game. It is cold if and only if Linda is playing a game. Jennifer is not a carpenter.
If Jennifer were a carpenter, then Linda is playing a game. If it is cold, then Linda is playing a game. If Linda plays a game, then Jennifer is a carpenter. If Linda plays a game, then it is cold. Linda is not playing a game.