A theological treatise, probably composed in Rome (c.432-40), against the Augustinian doctrine of predestination. Written from the standpoint of Semi-Pelagianism* (if not actually Pelagian), its bitter antipredestinarian views have been called “a cruel parody of Augustinianism.” Of its three books, the first is a plagiarized reproduction of Augustine's De Haeresibus, the second purports to be written by a supporter of Augustine's doctrine, and the third is a refutation of the second. Edited originally by J. Sirmond in 1643, it was much discussed in the Jansenist controversies of the seventeenth and eighteenth centuries.