A relation \(R\) on a set \(X\) is called connected when \(\forall\; x,y \in X\):

\(xRy \quad \text{or} \quad yRx \quad \text{or} \quad x = y\)

## Strongly connected

A relation \(R\) on a set \(X\) is called connected when \(\forall\; x,y \in X\):

\(xRy \quad \text{or} \quad yRx\)

## Bibliography

“Connected Relation.” 2022.

*Wikipedia*, March. https://en.wikipedia.org/w/index.php?title=Connected_relation&oldid=1079157082.