# Symbols:Brackets/Square Brackets/Closed Interval/Deprecated

## Closed Interval

$\sqbrk {a, b}$

The notation for a closed interval is more commonly seen as:

$\sqbrk {a, b} := \set {x \in S: a \le x \le b}$

However, as the $\sqbrk {a, b}$ notation is ambiguous, its use is deprecated on $\mathsf{Pr} \infty \mathsf{fWiki}$.

The $\LaTeX$ code for $\sqbrk {a, b}$ is \sqbrk {a, b} .