Definition:Coreflexive Relation
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Definition
Let $\RR \subseteq S \times S$ be a relation in $S$.
Definition 1
$\RR$ is coreflexive if and only if:
- $\forall x, y \in S: \tuple {x, y} \in \RR \implies x = y$
Definition 2
$\RR$ is coreflexive if and only if:
- $\RR \subseteq \Delta_S$
where $\Delta_S$ is the diagonal relation.
Also see
- Results about coreflexive relations can be found here.
Linguistic Note
Coreflexive is pronounced co-reflexive, not core-flexive.