 This is the business of EASP, to show that belief of the causal principles generates a system of beliefs about the external world which is justified by merits conferred on the system as a whole. These are not, or need not be, merits in relation to truth. The text makes no attempt to provide a reason to think the causal principles which found the system are metaphysically necessary truths about what exists. We saw that she does not mean to say that God is bound by it. The veracity of God is not offered as warrant of the metaphysical truth of CP; indeed, the existence of God is proved by it (EASP: 150; EPEU: 348). 