借助于上集算子和下集算子给出了DeMorgan偏序集概念并讨论了它的一些性质,得到了由DeMorgan偏序集的弱理想生成的最大同余关系.
The concept of De Morgan posets is introduced and some of its properties are given by using the upper opper iperator and the lower operator. The greatest congruences induced by the weak ideal of De Morgan posets is obtained.