Evaluates to true when the expression equals any listed option under value comparison. Empty
options, such as those produced by nil, are dropped first; an empty option list renders
in (), which is always false, so callers that treat an empty set as unconstrained must guard the
call.
Generates a SPARQL set-membership (
IN) test.Evaluates to
truewhen the expression equals any listed option under value comparison. Empty options, such as those produced by nil, are dropped first; an empty option list rendersin (), which is alwaysfalse, so callers that treat an empty set as unconstrained must guard the call.