If
[math]c \href{/cs2800/wiki/index.php/%E2%88%88}{∈} \href{/cs2800/wiki/index.php/A/R}{A/R}
[/math] is an
equivalence class of
[math]A
[/math] by
[math]R
[/math], and
[math]a \href{/cs2800/wiki/index.php/%E2%88%88}{∈} A
[/math], we say that
[math]a
[/math] is a
representative of
[math]c
[/math] if
[math]a \href{/cs2800/wiki/index.php/%E2%88%88}{∈} c
[/math].
Note that
[math]a
[/math] is a
representative of
[math]\href{/cs2800/wiki/index.php/%E2%9F%A6a%E2%9F%A7}{⟦a⟧}
[/math].