AMMONTUS TiElzMIAE (5th century A.D.) Greek philos opher, the son of Hermeias. He taught at Alexandria and had among his scholars Asclepius, John Philoponus, Damascius, and Simplicius. His commentaries on Plato and Ptolemy are lost. Of his commentaries on Aristotle we have—(i) one on the Isagoge of Porphyry (Venice, 1,5oo fol.) ; (2) one on the Categories (Venice, 1,503 fol.), the authenticity of which is doubted by Brandis; (3) one on the De Interpretatione (Venice, 1,503 fol.). They are printed in Brandis's scholia to Aristotle, forming the fourth volume of the Berlin Aristotle; they are also edited (1891 99) in A. Busse's Commentaria in Aristot. Graeca. The special section on Fate was published separately by J. C. Orelli, Alex. Aphrod., Ammonii, et aliorum de Fato quae supersunt (Zurich, 1824). A life of Aristotle, ascribed to Ammonius, but with more accuracy to John Philoponus, is often prefixed to editions of Aristotle. It has been printed separately, with Latin translation and scholia, at Leyden, 1621, and Helmstadt, 1666, and at Paris, 185o. Other commentaries on the Topics and the first six books of the Metaphysics still exist in manuscript.
For a list of his works see J. A. Fabricius, Bibliotheca Graeca, v. 704-707; C. A. Brandis, works. d. Reihenf. . d. Bucher d. Aristot. Org., 283 f.; K. Prantl, Gesch. d. Logik, i, 642,