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 William drives a car, then Susan is a scientist. Patricia is a lawyer or Susan is not a scientist. William is driving a car.
Susan is a scientist can be inferred via the modus ponens rule. If Susan were a scientist, then Patricia is a lawyer can be inferred via the rewriting rule.