# \lbrack

The [ symbol (Left square bracket, U+005B), written as \lbrack in LaTeX math mode.

https://texform.dev/latex/symbols/lbrack

## Metadata

| Field | Value |
| --- | --- |
| Topic | [Delimiters](https://texform.dev/latex/topics/delimiters) |
| Packages | base |
| Allowed mode | math |
| Glyph | [ |
| Unicode | U+005B LEFT SQUARE BRACKET |
| Delimiter |  |

## Syntax

```latex
\lbrack
```

Takes no arguments.

## Usage frequency

0.07% of formulas in the measured corpus contain this entry, rank 148 of 474 entries with frequency data.

## In TeXForm

TeXForm parses this entry as a character leaf mapped to U+005B (LEFT SQUARE BRACKET).