Boolean operator
Operator that returns true or false as the result.
The AND operator is a Boolean operator. It returns true as a result only if all input values are true. If the result returned is true, it is written in the subject of the notification.
The OR operator is a Boolean operator. It suffices if only one of the results is true. It is then written in the subject of the notification.
The NOT operator inverts the value of a Boolean variable. If the result returned is true, it is written in the subject of the notification.
