@article{1183736309,
author = {LeBlanc, Hugues},
title = {A Simplified Account of Validity and Implication for Quantificational Logic},
journal = {J. Symbolic Logic},
volume = {33},
number = {1},
year = {1968},
pages = { 231-235},
language = {en},
url = {http://dml.mathdoc.fr/item/1183736309}
}
LeBlanc, Hugues. A Simplified Account of Validity and Implication for Quantificational Logic. J. Symbolic Logic, Tome 33 (1968) no. 1, pp. 231-235. http://gdmltest.u-ga.fr/item/1183736309/