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.