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<div><span class="kw">theorem </span><a NAME="T30"><span class="comment"><font color="firebrick">:: RELAT_2:30</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">R</font> being   <a href="relat_1.html#NM1" title="RELAT_1:NM.1">Relation</a> holds <br/> ( <font color="Olive" title="b1">R</font> is  <a href="relat_2.html#V7" title="RELAT_2:attr.7">strongly_connected</a>  iff <span class="p1"><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">[:</a><span class="default"><span class="p2">(<span class="default"><a href="relat_1.html#K1" title="RELAT_1:func.1">field</a> <font color="Olive" title="b1">R</font></span>)</span>,<span class="p2">(<span class="default"><a href="relat_1.html#K1" title="RELAT_1:func.1">field</a> <font color="Olive" title="b1">R</font></span>)</span></span><a href="zfmisc_1.html#K2" title="ZFMISC_1:func.2">:]</a></span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">R</font> <a href="xboole_0.html#K2" title="XBOOLE_0:func.2">\/</a> <span class="p1">(<span class="default"><font color="Olive" title="b1">R</font> <a href="relat_1.html#K2" title="RELAT_1:func.2">~</a></span>)</span> )</div></div>
