\ge
The symbol \ge is used to denote 'greater than or equal to' in mathematical expressions. It is a relational operator that indicates one quantity is either greater than or exactly equal to another.
x is greater than or equal to 5
x \ge 5
The sum of a and b is greater than or equal to c
a + b \ge c
For any non-negative integer n, its square is also non-negative
\text{If } n \ge 0, \text{ then } n^2 \ge 0