Representative

Definition: representative

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].