%0 Journal Article %A Gilmore, P. C. %T An addition to “logic of many-sorted theories” %J Compositio Mathematica %D 1956-1958 %P 277-281 %V 13 %I Kraus Reprint %U http://www.numdam.org/item/CM_1956-1958__13__277_0/ %G en %F CM_1956-1958__13__277_0