  We shall not go into the details of her argument for the existence and nature of God (see Lascano 2011). We simply note here that hers is a cosmological argument for the existence of God, specifically one starting from the existence in the world of contingent beings. Thus, her distinction between necessity and contingency as developed in her material on the PC and the PSR, together with further use of the PSR in her chapter on God, lead to her particular proof for God's existence.  She argues: