It is curious that many of his contemporaries tried to respond to the challenge of proving the immortality of the soul by appealing to coherence, precisely when the Alexandrists emphasized that the coherence of Aristotle was placed in mortality: every substantial form is born and perishes with the compound to which it gives the essence. Pereira was then not original when he tried to respond to Pomponazzi’s mortalist thesis by resorting to an alternative coherence based on the radical separation