%0 Journal Article %A Schneider, Hubert H. %T Semantics of the predicate calculus with identity and the validity in the empty individual-domain %J Portugaliae mathematica %D 1958 %P 85-96 %V 17 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1958__17_3_114803/ %G en %F PORMA_1958__17_3_114803