-- Operator: not The logical negation operator.
not is a prefix operator; its operand is a Boolean expression, and its result is a Boolean value.
not forces evaluation (like
is) of its operand.
The global flag
prederror governs the behavior of
not when its operand cannot be determined to be
not prints an error message when
true. Otherwise, operands which do not evaluate to
false are accepted, and the result is a Boolean expression.
There are also some inexact matches for
?? not to see them.
(%o1) true (%i2)