 PR is at work in Descartes’ analyses of all primary ideas, which includes all innate and adventitious ideas. The innate idea of his (i.e., Descartes’) mind is said to be of or to represent his mind insofar as the idea’s objective reality has its origin in the formal reality of his mind. The innate idea of God is said to represent God insofar as the idea’s objective reality has its origin in the formal reality of God (an infinite substance). The innate idea of a body is said to represent a body insofar as the idea’s objective reality has its origin in the formal reality of a corporeal substance. The adventitious idea of the Sun is said to represent the Sun insofar as the idea’s objective reality has its origin in the formal reality of the Sun. And the list could go on. 