Inequality
From Conservapedia
An inequality is a mathematical expression concerning the relative size of two terms.
These come in five kinds;
- An expression in which the left hand side is strictly greater than the right, denoted:
- An expression in which the left hand side is greater than or equal than the right, denoted:
- An expression in which the left hand side is strictly less than the right, denoted:
- An expression in which the left hand side is greater than or equal than the right, denoted:
- An expression in which the left hand side is not equal to the right, but no further information is implied, denoted:
For example, 4 is greater than 3, so either;
4>3
3<4
are true statements.
The inequalities are widely used in more advanced mathematics for example the cosine function is always between -1 and 1 inclusive so you can write:
.
This gives the function's bounds. '
' means that the preceding inequality is true for all real values of 
.
