What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: Linda is listening to a song if and only if it is cold. For all x_16, x_16 will listen to a song and x_16 will go running.
If Linda listens to a song, then it is cold can be inferred via the biconditional elimination rule. If it is cold, then Linda is listening to a song can be inferred via the biconditional elimination rule. For all x_16, x_16 will listen to a song can be inferred via the universal simplification rule. For all x_16, x_16 will go running can be inferred via the universal simplification rule.