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: Patricia is not curious. Patricia is curious if and only if Robert is driving a car. It is not cold or Susan is listening to a song. It is cold or Robert is driving a car.
Robert is driving a car or Susan is listening to a song can be inferred via the resolution rule. If Patricia were curious, then Robert is driving a car can be inferred via the biconditional elimination rule. If Robert drives a car, then Patricia is curious can be inferred via the biconditional elimination rule. Robert is not driving a car can be inferred via the biconditional elimination rule.