Definition:Symmetric Relation

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

Also see

 * Equivalence of Definitions of Symmetric Relation


 * Definition:Symmetry (Relation)


 * Definition:Asymmetric Relation
 * Definition:Antisymmetric Relation
 * Definition:Non-symmetric Relation


 * Definition:Reflexive Relation
 * Definition:Transitive Relation