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<div><span class="kw">theorem </span><a NAME="T20"><span class="comment"><font color="firebrick">:: FIELD_16:20</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">R</font> being   non  <a href="struct_0.html#V6" title="STRUCT_0:attr.6">degenerated</a>   <a href="group_1.html#V5" title="GROUP_1:attr.5">commutative</a>  <a href="vectsp_1.html#NM3" title="VECTSP_1:NM.3">Ring</a> holds <br/> ( <font color="Olive" title="b1">R</font> is  <a href="field_16.html#V3" title="FIELD_16:attr.3">reduced</a>  iff  <a href="topzari1.html#K10" title="TOPZARI1:func.10">nilrad</a> <font color="Olive" title="b1">R</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="ring_4.html#K1" title="RING_4:func.1">{</a><span class="default"><span class="p2">(<span class="default"><a href="struct_0.html#K4" title="STRUCT_0:func.4">0.</a> <font color="Olive" title="b1">R</font></span>)</span></span><a href="ring_4.html#K1" title="RING_4:func.1">}</a></span> )</div></div>
