البرهان

The text used is that of the ‘Selecta ex Organo Aristoteleo Capitula,’ published by the Clarendon Press, and, for portions of the work not included in those selections, the Tauchnitz edition of the Organon (1893). Where the numberings of the chapters differ, the system adopted in the Clarendon Press selections has been followed. I am much indebted, as regards the short analyses placed at the head of each chapter, to St. Hilaire’s ‘Logique d’Aristote’ (Paris, 1838), and, for the translation, to Dr. Zell’s ‘Zweite Analytica’ (Stuttgart, 1840). Two chapters of the Prior Analytics (Bk. II. cc. 23, 24) have been added in an Appendix, as illustrating Aristotle’s doctrine of Induction and Example. E. S. B. Oxford, June, 1901. Book I. *Chap. I.: Whether a Demonstrative Science exists *Chap. II.: What Knowing is, what Demonstration is, and of what it consists *Chap. III.: A refutation of the error into which some have fallen concerning Science and Demonstration *Chap. IV.: The meaning of ‘Distributive,’ ‘Essential,’ ‘Universal’