Positively closed classes of three-valued logic generated by one-place functions

被引：2
|
作者：
Marchenkov, S. S.
机构：
来源：
DISCRETE MATHEMATICS AND APPLICATIONS | 2009年 / 19卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1515/DMA.2009.026
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
We consider the positive closure operator on the set P-3 of functions of three-valued logic. It is shown that in P-3 there are exactly 51 positively closed classes positively generated by one-place functions, 26 of these classes are generated by a single one-place function (including one of the positively precomplete in P-3 classes), and 25 classes are generated by two functions (including the class P-3 and the remaining 9 positively precomplete classes).
引用
收藏
页码：375 / 382
页数：8
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