The comparison operator '<=' is used to check if the left value is the right value.

The 'not' operator is a operator used to negate a comparison.

The comparison operator '<' is used to check if the left value is the right value.

The relational operator is used to check if one value is less than another.

The relational operator is used to check if two values are not equal.

The 'or' operator is a operator used for more complex comparisons.

The 'and' operator is a operator used for more complex comparisons.