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<b>take </b>
<font color="Maroon">c<sub>1</sub></font>
;<br/>

<b>take </b>
1
; <i><font color="Red">:: according to </font></i><a class="ref" href="comseq_2.html#D3" target="_self">COMSEQ_2:def 3</a><br/>

<b>let </b><font color="Maroon">c<sub>2</sub></font> be   <a href="nat_1.html#NM1">Nat</a>;<br/>

<b>thus </b><a NAME="E1:12_1_1"/>
<span class="p1"><a href="complex1.html#K17">|.</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="comseq_1.html#K1">.</a> <font color="Maroon">c<sub>2</sub></font></span>)</span></span><a href="complex1.html#K17">.|</a></span> <a href="xxreal_0.html#NR3" target="_self">&lt;</a> 1
 <b>by </b><i><a class="ref" href="funcop_1.html#T13">FUNCOP_1:13</a>, <a class="ref" href="complex1.html#T130">COMPLEX1:130</a></i>;<br/>


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