Type:
_NOT: boolean -> boolean
Call syntax:
_NOT(x)
not x
Description:
The unary boolean operator "not" realises logical
negation. not x is FALSE if
x is TRUE, TRUE otherwise.
In expressions, "not" binds stronger than "and", but weaker than equality and relational operators.
Example:
> not TRUE
Result= FALSE
> not FALSE
Result= TRUE
> not 1=0
Result= TRUE
> not TRUE=FALSE
Result= TRUE
See also: Operator "and" (_AND), Operator "or" (_OR), Operators and Expressions.