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 it is cloudy, then Michael is a mechanic. If it is cold, then it is late. If it is late, then Michael is not a mechanic. It is cloudy.
Michael is a mechanic can be inferred via the modus ponens rule. If it is cold, then Michael is not a mechanic can be inferred via the transitivity rule.