PCROPhERT Y OF U n v o r s i v o f Schijan Libis one AR GALEN AND THE SYLLOGISM GALEN AND THE SYLLOGISM An Examination of the Thesis that Galen Originated the Fourth Figure of the Syllogism in the Light of New Data from Arabic Sources including An Arabic Text Edition and Annotated Translation of Ibn al-Salah’s Treatise “On the Fourth Figure of the Categorical Syllogism ” by NICHOLAS RESCHER Professor of Philosophy in the University of Pittsburgh UNIVERSITY OF PITTSBURGH PRESS 1966 59? G24 RAL Library of Congress Catalog Number 66-12132 Printed in England by Stephen Austin & Sons, Ltd., Hertford DEFY9I7- 162 Its author cordially dedicates the book to his colleague and friend KURT BAIER