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<div><span class="kw">theorem </span><a NAME="T155"><span class="comment"><font color="firebrick">:: RELAT_1:155</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">X</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a> <br/>  for <font color="Olive" title="b2">R</font> being   <a href="relat_1.html#NM1" title="RELAT_1:NM.1">Relation</a>  st  not <font color="Olive" title="b2">R</font> <a href="relat_1.html#K5" title="RELAT_1:func.5">|</a> <font color="Olive" title="b1">X</font> is  <a href="relat_1.html#V3" title="RELAT_1:attr.3">empty-yielding</a>  holds <br/> not <font color="Olive" title="b2">R</font> is  <a href="relat_1.html#V3" title="RELAT_1:attr.3">empty-yielding</a>  ;<br/></div></div>
