LETTER TO THE EDITOR

In my article (S. R. Kogalovskii, “On quasiprojective classes of models”), published in DAN, vol. 148, no. 3, 1963, Theorem 5 should be read as follows:

Theorem 5. Every infinite model \(\mathfrak{M}\) of a quasiprojective class has within it an extension of any infinite cardinality greater than the cardinality of \(\mathfrak{M}\).

After the publication of the article, the author became aware of an earlier work by Rabin (M. Rabin, Proc. Koninkl. Nederl. Akad. van Wetensch., A 62, no. 4 (1959)), in which Theorem 6 of my article is contained.

S. Kogalovskii