@article{1183528497,
author = {Tait, W. W.},
title = {A nonconstructive proof of Gentzen's Hauptsatz for second order predicate logic},
journal = {Bull. Amer. Math. Soc.},
volume = {72},
number = {4},
year = {1966},
pages = { 980-983},
language = {en},
url = {http://dml.mathdoc.fr/item/1183528497}
}
Tait, W. W. A nonconstructive proof of Gentzen's Hauptsatz for second order predicate logic. Bull. Amer. Math. Soc., Tome 72 (1966) no. 4, pp. 980-983. http://gdmltest.u-ga.fr/item/1183528497/