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<div><span class="kw">theorem </span><a NAME="T18"><span class="comment"><font color="firebrick">:: LANG1:18</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  <font color="Olive" title="b1">R</font> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a> <font color="Olive" title="b1">R</font> <a href="finseq_1.html#K18" title="FINSEQ_1:func.18">[*]</a> </div></div>
