Translate the following inference to logic notation: For all x, x_7 will drive a car. There is at least one x for which x_7 is not a soldier. For all x, x_7 is a soldier or x_7 will read a book. Therefore there is at least one x for which x_7 will drive a car.
forall x: P(x). exists x: ~Q(x). forall x: Q(x) or R(x). Therefore exists x: P(x).