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Boolean Expressions
In a boolean expression each item has a value of true or false and the result is true or false.
Values are combined with one of the following operators:
a and b Returns true if both a and b are true.
a or b Returns true if either of a or b are true.
a xor b Returns true if either a or b is true, but false if they are both false or both true.
not a Returns true is a is false or false if a is true.
In PageNest 'not' is evaluated first. The other operators are evaluated from left to right. You can alter the precedence by placing sub-expression in brackets.
Examples
not a and b True if a is false and b is true.
not (a and b) False if both a and b are true, else true.
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