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: If Jennifer listens to a song, then it is sunny. It is sunny if and only if Michael is running. Jennifer is listening to a song.
It is sunny can be inferred via the modus ponens rule. If it is sunny, then Michael is running can be inferred via the biconditional elimination rule. If Michael goes running, then it is sunny can be inferred via the biconditional elimination rule.