%0 Journal Article %A Lambek, J. %T On the syllogism, by Augustus de Morgan. Edited by Peter Heath. Yale University Press, 1966. Distributed by McGill University Press, xxxi + 355 pages. $10.00. %J Canadian mathematical bulletin %D 1968 %P 348-348 %V 11 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0008439500029428/ %R 10.1017/S0008439500029428 %F 10_1017_S0008439500029428