Here are the 4 inequality signs.
[tex] a < b[/tex] ---> a is less than b
[tex] a \le b [/tex] ---> a is less than or equal to b
[tex] a > b[/tex] ---> a is greater than b
[tex] a \ge b [/tex] ---> a is greater than or equal to b
For the second and fourth lines above, the two sides may or may not be equal.
For the first and third lines above, the two sides cannot be equal.
