# Braces

## Braces

Symbol that denotes a grouping of elements in a set.

Braces are always used in pairs.
Braces can be used as a symbol to group operations.
Ex. : {8 + 3(5 – 2) – 5}

### Notation

The brace symbol is { }.

### Examples

P = {0, 1, 2, 3, 4, 5, 6, 7}
Q = {x ∈ $$\mathbb{N}$$ ∣ x < 8}

### Historical Note

François Viète introduced braces in 1593.