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.