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fn:not(
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$arg as item()*
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Summary:
Returns true if the
effective boolean value is false, and false
if the effective boolean value is true.
The $arg parameter is first reduced to an effective
boolean value by applying the fn:boolean function.
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Parameters:
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$arg
:
The expression to negate.
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Example:
fn:not(fn:true())
=> false
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Example:
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