RDF.XSD.Boolean.ebv

You're seeing just the function ebv, go back to RDF.XSD.Boolean module for more information.

Specs

ebv(input_value()) :: RDF.Literal.t() | nil

Returns an Effective Boolean Value (EBV).

The Effective Boolean Value is an algorithm to coerce values to a RDF.XSD.Boolean.

It is specified and used in the SPARQL query language and is based upon XPath's fn:boolean. Other than specified in these specs any value which can not be converted into a boolean results in nil.

see