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<div><span class="kw">theorem </span><a NAME="T4"><span class="comment"><font color="firebrick">:: FIELD_4:4</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">R</font> being   <a href="vectsp_2.html#NM1" title="VECTSP_2:NM.1">comRing</a> holds  <font color="Olive" title="b1">R</font> is   <a href="field_4.html#NM2" title="FIELD_4:NM.2">comRingExtension</a> of <font color="Olive" title="b1">R</font></div></div>
