Definition:Right Quasi-Reflexive Relation/Definition 2

Definition
Let $\RR \subseteq S \times S$ be a relation in $S$.

$\RR$ is right quasi-reflexive :


 * $\forall y \in \Img \RR: \tuple {y, y} \in \RR$

where $\Img \RR$ denotes the image set of $\RR$.

Also see

 * Equivalence of Definitions of Right Quasi-Reflexive Relation


 * Definition:Left Quasi-Reflexive Relation