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<b>let </b><font color="Maroon">c<sub>1</sub></font>, <font color="Maroon">c<sub>2</sub></font> be   <a href="clvect_1.html#NM1">VECTOR</a> of <a href="csspace.html#K20">Complex_l2_Space</a> ;<br/>

<b>thus </b><font color="Maroon">c<sub>1</sub></font> <a href="csspace.html#K12">.|.</a> <font color="Maroon">c<sub>2</sub></font> = 
the <a href="csspace.html#U1">scalar</a> of <a href="csspace.html#K20">Complex_l2_Space</a>  <a href="binop_1.html#K2">.</a> <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>2</sub></font>
<b>by </b><i><a class="ref" href="csspace.html#D12">CSSPACE:def 12</a></i>
<br/>.= 
 <a href="comseq_3.html#K8">Sum</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="csspace.html#K2">seq_id</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="comseq_1.html#K3">(#)</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="csspace.html#K2">seq_id</a> <font color="Maroon">c<sub>2</sub></font></span>)</span> <a href="comseq_2.html#K1">*'</a> </span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="csspace.html#D19">CSSPACE:def 19</a>, <a class="ref" href="csspace.html#D20">CSSPACE:def 20</a></i>
;<br/>


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