Countability of the Set of Closed Overclasses of Some Minimal Classes in the Partly Ordered Set *A. V. Makarov and V. V. Makarov.* // Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika. 2017. № 1. P. 62-64
[Moscow Univ. Math. Bulletin. Vol. 72, N 2, 2017. P. 35-36].

The following theorem is proved: the set of closed classes containing some minimal classes in the partly
ordered set

*Key words*:
three-valued logic, closed class, partially ordered set, homomorphism, minimal class.