Except in `` main '' namespace ( = `` article namespace '' ) , where the subpage feature has been disabled in English Wikipedia , subpages are pages separated with a '' \/ '' ( a slash ) from their ` parent ' page . Except in main namespace ( article namespace ) , where the subpage feature has been disabled in the English Wikipedia , subpages are pages separated with a '' \/ '' ( a slash ) from their ` parent ' page .