http://topbraid.org/spin/spinrdfs#isSystem
Class 'spinrdfs:is system'

ASK WHERE { LET (?ns http://www.fadyart.com/parties#= afn:namespace(?arg1)) http://www.fadyart.com/parties#. FILTER (((?ns = xsd:string(http://www.w3.org/2002/07/owl#)) || (?ns = xsd:string(http://www.w3.org/2000/01/rdf-schema#))) || (?ns = xsd:string(http://www.w3.org/1999/02/22-rdf-syntax-ns#))) http://www.fadyart.com/parties#. }

Argument arg1 http://www.fadyart.com/parties# Resource

xsd:boolean

spin:Function

Checks whether a given resource (?arg1) is from the RDF, RDFS or OWL namespace.

is system

spin:Functions