Abstract
To this day no consensus has been reached concerning the authorship of the 3rd book of Philoponus’ on the Soul. I will begin this article by surveying the discussion of the authorship. In this first section I go into some detail concerning the arguments of scholars who attribute the DAC 3 to Philoponus, and those who do not believe that it is by Philoponus, including those who attribute it to Stephanus of Alexandria. The second section of the paper consists in an analysis and evaluation of the arguments involved in the debate. Finally, I conclude by presenting my own position, including new arguments in favor of the attribution of the DAC 3 to John Philoponus.