<entry id="2172947" version="1.6" HE="true" xmlns="http://www.wadoku.de/xml/entry"><form><orth>空集合</orth><reading><hira>くうしゅうごう</hira><hatsuon>くう･しゅう'ごう</hatsuon><accent>3</accent></reading></form><gramGrp><meishi/></gramGrp><sense><usg type="dom">Math.</usg><trans><tr>leere <token genus="f" type="N">Menge</token></tr></trans><trans><tr><token genus="f" type="N">Nullmenge</token></tr></trans><expl>Symbol: ø, φ oder {}</expl></sense></entry>