@article{1183730670,
author = {Hoo, Tzu-Hua},
title = {$m$-Valued Sub-System of $(m+n)$-Valued Propositional Calculus},
journal = {J. Symbolic Logic},
volume = {14},
number = {1},
year = {1949},
pages = { 177-181},
language = {en},
url = {http://dml.mathdoc.fr/item/1183730670}
}
Hoo, Tzu-Hua. $m$-Valued Sub-System of $(m+n)$-Valued Propositional Calculus. J. Symbolic Logic, Tome 14 (1949) no. 1, pp. 177-181. http://gdmltest.u-ga.fr/item/1183730670/