@article{1093891803,
author = {Schumm, George F.},
title = {A Henkin-style completeness proof for the pure implicational calculus.},
journal = {Notre Dame J. Formal Logic},
volume = {16},
number = {1},
year = {1975},
pages = { 402-404},
language = {en},
url = {http://dml.mathdoc.fr/item/1093891803}
}
Schumm, George F. A Henkin-style completeness proof for the pure implicational calculus.. Notre Dame J. Formal Logic, Tome 16 (1975) no. 1, pp. 402-404. http://gdmltest.u-ga.fr/item/1093891803/