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not(expression) Negates an expression. |
Function: not()
Negates an expression, i.e. returns true if the expression inside the brackets evaluates to false and vice versa.
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Syntax
not(expression)
Examples
not(a < b)
not() returns true if a is greater than b and false if a is less than b.
not(1)Returns false.
not(0)
Returns true.