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<b>let </b><font color="Maroon" title="c1">x</font> be   <a href="real_1.html#NM1" title="REAL_1:NM.1">Real</a>;<br/>

<font color="Maroon" title="c1">x</font> <a href="prepower.html#K7" title="PREPOWER:func.7">#Z</a> 2 = 
<font color="Maroon" title="c1">x</font> <a href="prepower.html#K3" title="PREPOWER:func.3">|^</a> 2
<b>by </b><i><a class="ref" href="prepower.html#T46" title="PREPOWER:th.46">PREPOWER:46</a></i>
<br/>.= 
<font color="Maroon" title="c1">x</font> <a href="square_1.html#K5" title="SQUARE_1:func.5">^2</a> 
<b>by </b><i><a class="ref" href="newton.html#T100" title="NEWTON:th.100">NEWTON:100</a></i>
;<br/>
<b>hence </b><a NAME="E2:1"/>
<font color="Maroon" title="c1">x</font> <a href="prepower.html#K7" title="PREPOWER:func.7">#Z</a> 2 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c1">x</font> <a href="square_1.html#K5" title="SQUARE_1:func.5">^2</a> 
 ;<br/>


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