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<div><span class="kw">theorem </span><a NAME="T23"><span class="comment"><font color="firebrick">:: FIELD_10:23</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">r</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <a href="vectsp_1.html#K2" title="VECTSP_1:func.2">F_Real</a> holds   <a href="algnum_1.html#K1" title="ALGNUM_1:func.1">Ext_eval</a> (<a href="field_10.html#K2" title="FIELD_10:func.2">X^2-2</a>,<font color="Olive" title="b1">r</font>) <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">(<span class="default"><font color="Olive" title="b1">r</font> <a href="binom.html#K2" title="BINOM:func.2">|^</a> 2</span>)</span> <a href="xcmplx_0.html#K6" title="XCMPLX_0:func.6">-</a> 2 <span class="kw">by</span> <span class="lab"><a class="txt" href="field_10.html#E33"><span class="lab"><font color="Green" title="E23">LKX2ext</font></span></a></span>;<br/></div></div>
