  Olympiodorus must have written a great deal more over his long career. He himself refers to a commentary on Porphyry’s Introduction (see in Cat. 16,26; 60,10; 68,15.17); it was used by David and Elias. There must have been commentaries on Aristotle’s Analytics (a late hand in the Jerusalem manuscript Taphos 150 attributes the commentary on the Prior Analytics contained therein to Olympiodorus) and on Aristotle’s physical treatises (commentaries on de Generatione et Corruptione and on de Anima are mentioned in Arabic sources, and the Ambrosianus Q 74 possibly contains a fragment of the latter, see Rashed). In the Alcibiades commentary (§110,8f.), Olympiodorus announces lectures on the Sophist.