@article{1094068845,
author = {Hacker, Edward A.},
title = {Number system for the immediate inferences and the syllogism in Aristotelian logic.},
journal = {Notre Dame J. Formal Logic},
volume = {8},
number = {3},
year = {1967},
pages = { 318-320},
language = {en},
url = {http://dml.mathdoc.fr/item/1094068845}
}
Hacker, Edward A. Number system for the immediate inferences and the syllogism in Aristotelian logic.. Notre Dame J. Formal Logic, Tome 8 (1967) no. 3, pp. 318-320. http://gdmltest.u-ga.fr/item/1094068845/