This example uses the Not operator to perform logical negation on an expression.
Dim A, B, C, D, MyCheck
A = 10: B = 8: C = 6: D = Null ' Initialize variables.
MyCheck = Not(A > B) ' Returns False.
MyCheck = Not(B > A) ' Returns True.
MyCheck = Not(C > D) ' Returns Null.
MyCheck = Not A ' Returns -11 (bitwise comparison).