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<b>let </b><font color="Maroon">c<sub>2</sub></font> be   <a href="int_1.html#NM1">Integer</a>;<br/>

<a NAME="E1:15"/>
<font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>2</sub></font> <a href="xcmplx_0.html#K7">/</a> 1
 
;<br/>
<b>hence </b><a NAME="E2:15"/>
<font color="Maroon">c<sub>2</sub></font> is   <a href="rat_1.html#NM1">Rational</a>
 <b>by </b><i><a class="ref" href="rat_1.html#T6" target="_self">Th6</a></i>;<br/>


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