Mathematical Inequalities
When two numbers are different in value, a variety of symbols are used to turn them into an inequality. The four most common inequalities in arithmetic are:

Greater than (>) means that the first number or expression is greater than the second:

5 > 4

1,000 > 100

2 > –2

Less than (<) means that the first number or expression is less than the second:

7 < 9

1,776 < 1,777

–5 < 0

Doesn’t equal (≠) means that the two numbers or expressions aren’t equal:

2 ≠ 3

3 ≠ 2

–17 ≠ 17

Approximately equals (≈) means that the two numbers or expressions are close in value:

999 ≈ 1,000

14.001 ≈ 14

1,000,823 ≈ 1,000,000