  Among the ancient authors who held the view that Aristotle denied any kind of immortality for the individual human soul we find Alexander of Aphrodisias, who famously identified the productive intellect of De anima 3.5 with the first mover. Christian authors such as Hippolytus of Rome, Tatian, Ps.-Justin Martyr, Gregory of Nyssa, and Theodoret also claimed that Aristotle believed the soul to be wholly mortal, and they all condemned him for it. Perhaps it is not so surprising that the fiercely anti-Aristotelian 2nd-century Platonist Atticus did the same; but Aristotle’s definition was also criticized by Plotinus and Porphyry, since it seemed to suggest that the soul was not a separable substance.