L. Henkin. Some remarks on infinitely long formulas. Infinitistic methods, Proceedings of the Symposium on Foundations of Mathematics, Warsaw, 2-9 September 1959, Państwowe Wydawnictwo Naukowe, Warsaw, and Pergamon Press, Oxford-London-New York-Paris, 1961, pp. 167–183. - Carol R. Karp. Independence proofs in predicate logic with infinitely long expressions. The journal of symbolic logic, vol. 27 no. 2 (for 1962, pub. 1963), pp. 171–188.
Thomas Frayne · Journal of Symbolic Logic · 1965
L. Henkin. Some remarks on infinitely long formulas. Infinitistic methods, Proceedings of the Symposium on Foundations of Mathematics, Warsaw, 2-9 September 1959, Państwowe Wydawnictwo Naukowe, Warsaw, and Pergamon Press, Oxford-London-New York-Paris, 1961, pp. 167–183. - Carol R. Karp. Independence proofs in predicate logic with infinitely long expressions. The journal of symbolic logic, vol. 27 no. 2 (for 1962, pub. 1963), pp. 171–188. - Volume 30 Issue 1