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: William is not excited. It is not late. It is late or Thomas is running. William is excited or Charles is sleeping.
Thomas is running can be inferred via the disjunctive syllogism rule. Charles is sleeping can be inferred via the disjunctive syllogism rule. William is not excited and it is not late can be inferred via the conjunction rule. It is not late and William is not excited can be inferred via the conjunction rule.