Inequalities are mathematical sentences comparing two quantities that are not equal (or possibly not equal). There are five inequality symbols:
| x ≠ 3 | x is not equal to 3 |
| x < 3 | x is less than 3 |
| x > 3 | x is greater than 3 |
x 3 |
x is less than or equal to 3 |
x 3 |
x is greater than or equal to 3 |
See also solving linear inequalities.