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<div><span class="kw">theorem </span><a NAME="T4"><span class="comment"><font color="firebrick">:: WELLORD1:4</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> <a href="wellord1.html#R2" title="WELLORD1:pred.2">well_orders</a>  <a href="relat_1.html#K1" title="RELAT_1:func.1">field</a> <font color="Olive" title="b1">R</font> iff <font color="Olive" title="b1">R</font> is  <a href="wellord1.html#V2" title="WELLORD1:attr.2">well-ordering</a>  )</div></div>
