Non-Reflexive Relation/Examples/Arbitrary Non-Reflexive Relation 1
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Example of Non-Reflexive Relation
Let $V_1 = \set {y, z}$.
Let $S$ be the relation on $V_1$ defined as:
- $S = \set {\tuple {y, y}, \tuple {y, z} }$
Then $S$ is neither:
- a reflexive relation, as $\tuple {z, z} \notin S$
nor:
- an antireflexive relation, as $\tuple {y, y} \in S$
Thus $S$ is a non-reflexive relation.
Sources
- 1977: Gary Chartrand: Introductory Graph Theory ... (previous) ... (next): Appendix $\text{A}.2$: Cartesian Products and Relations