# Quasi-Normal Relations - a New Class of Relations

• ROMANO, DANIEL ABRAHAM (Faculty of Education Bijeljina, East Sarajevo University)
• Accepted : 2014.11.27
• Published : 2015.09.23
• 38 8

#### Abstract

In this paper, concepts of quasi-normal and dually quasi-normal relations are introduced. Characterizations of these relations are obtained. In addition, particulary we show that the anti-order relation ${\nleqslant}$ ($={\leqslant}^C$) is a (dually) quasi-normal relation if and only if the partially ordered set (X, ${\leqslant}$) is an anti-chain.

#### Keywords

relations;quasi-normal relations;dually quasi-normal relations

#### References

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