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<div><span class="kw">theorem </span><a NAME="T15"><span class="comment"><font color="firebrick">:: SIMPLEX0:15</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">K</font> being   <a href="simplex0.html#NM1" title="SIMPLEX0:NM.1">SimplicialComplexStr</a> holds <br/> (  <a href="simplex0.html#K4" title="SIMPLEX0:func.4">Vertices</a> <font color="Olive" title="b1">K</font> is  <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>  iff <font color="Olive" title="b1">K</font> is  <a href="simplex0.html#V4" title="SIMPLEX0:attr.4">empty-membered</a>  ) <span class="kw">by</span> <span class="lab"><a class="txt" href="simplex0.html#E26"><span class="lab"><font color="Green" title="E18">Lm2</font></span></a></span>;<br/></div></div>
