i t#jK THE LOEB CLASSICAL LIBRARY FOUNDED BY JAME3 LOEB, LL.D. EDITED BY t T. E. PAGE, C.H., LITT.D. p. CAPPS, PH.D., LL.D. t W. H. D. ROUSE, litt.d. A. POST, l.h.d. E. H. WARMINGTON, m.a., f.r.hist.soc. ARISTOTLE POSTERIOR ANALYTICS TOPICA ARISTOTLE POSTERIOR ANALYTICS BY HUGH TREDENNICK, M.A. PROFESSOR OF CLASSICS IN THE UNIVERSITY OF LONDON TOPICA BY E. S. FORSTER, M.A. EMERITUS PROFESSOR OF GREEK IN THE UNIVERSITY OF SHEFFIELD LONDON WILLIAM HEINEMANN LTD CAMBRIDGE, MASSACHUSETTS HARVARD UNIVERSITY PRESS MCMLX ©The Presidentand Fellows ofHarvard College 1960 %^:r PrintedinGreatBritain