fn functions (Boolean)

The boolean built-in functions are XQuery functions to manipulate xs:boolean values. They are defined in XQuery 1.0 and XPath 2.0 Functions and Operators.

3 functions

Function name	Description
fn:false	Returns the xs:boolean value false.
fn:not	Returns true if the effective boolean value is false, and false if the effective boolean value is true.
fn:true	Returns the xs:boolean value true.