Mathematical statement that contains one or more variables and a relation of inequality.

### Symbols

The symbols for the relation of inequality are :

- “<” which is read as “is less than”
- “>” which is read as “is greater than”
- “≤” which is read as “is less than or equal to”
- “≥” which is read as “is greater than or equal to”

### Examples

- In \(\mathbb{N}\), the solution set of the inequality \(x + 5 > 12\) is : {8, 9, 10, 11, 12, 13, …}.
- In \(\mathbb{R}\), the solution set of the inequality \(15 + 7 ≥ x\) is : ]–∞, 22].