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: Karen is climbing a mountain or it is not windy. Charles is drinking water and Susan is listening to a song. Karen is not climbing a mountain.
It is not windy can be inferred via the disjunctive syllogism rule. Charles is drinking water can be inferred via the simplification rule. Susan is listening to a song can be inferred via the simplification rule. If it is windy, then Karen is climbing a mountain can be inferred via the rewriting rule.