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: Michael is an electrician or it is windy. Michael is not an electrician or Robert is running. Michael is playing tennis if and only if Robert is running. It is not windy.
It is windy or Robert is running can be inferred via the resolution rule. If Michael plays tennis, then Robert is running can be inferred via the biconditional elimination rule. If Robert goes running, then Michael is playing tennis can be inferred via the biconditional elimination rule.