The <> function returns the symbol TRUE if its first argument is not equal in value to all its subsequent arguments, otherwise it returns the symbol FALSE. Note that <> compares only numeric values and will convert integers to floats when necessary for comparison.
Syntax
(<> <numeric-expression> <numeric-expression>+)
Example
CLIPS> (<> 3 3.0) FALSE CLIPS> (<> 4 4.1) TRUE CLIPS>
See portability note in section 12.1.13.