Frege and Gödel: two fundamental texts in mathematical logic
Heijenoort, Jean van.
Frege, Gottlob,1848-1925.
Gödel, Kurt.
Cambridge (Mass.) Harvard University Press London Distributed by Oxford University Press
1970
These translations originally published in the author's 'From Frege to Gödel: a source book in mathematical logic, 1879-1931'. 1967
bibl p111-116
Contains Frege's 'Begriffschrift', originally published Halle, 1879; and three papers by Gödel originally published in German
Logic, Symbolic and mathematical.