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: It is cloudy or it is windy. Charles is making tea. It is not cloudy.
It is windy can be inferred via the disjunctive syllogism rule. Charles is making tea and it is not cloudy can be inferred via the conjunction rule. It is not cloudy and Charles is making tea can be inferred via the conjunction rule.