
MarkLogic 10 Product Documentation
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. | 
	  
	
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