О четырехзначных регулярных логиках

Abstract

A set of four-valued regular logics is introduced in the article. It is shown that the set of four-valued regular logics does not coincide with the set of four-valued monotonic logics (if the set $\{1,0,\frac{2}{3},\frac{1}{3}\}$ is ordered by that way: $\frac{1}{3}\leq 0$, $\frac{1}{3}\leq 1$, $1 \leq \frac{2}{3}$, $0 \leq \frac{2}{3}$ and 1 and 0 noncomparable).