Invert boolean value of its argument.
fn:not(sequence $sequence) => boolean
This function returns true, if the effective boolean value
of $sequence is false, and it returns
false, if the effective boolean value of $sequence is
true.
| $sequence |
Description missing. |
|---|
Negate an empty sequence:
not(())
The result is true, since the effective boolean value of
the empty sequence is false.
Select all patients that do not have some form of angina:
for $a in input()/patient let $b := $a/submitted/diagnosis where not(starts-with($b, "Angina")) return $a/name
The following construct(s) refer to this construct:
