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<b>let </b><font color="Maroon">i</font> be    <a href="subset_1.html#M2">Element</a> of  <a href="numbers.html#K5">NAT</a> ;<br/><b>let </b><font color="Maroon">R</font> be    <a href="finseq_2.html#M2">Element</a> of <font color="Maroon">i</font> <a href="finseq_2.html#K4">-tuples_on</a> <a href="numbers.html#K1">REAL</a> ;<br/>



<b>thus </b> <a href="rvsum_1.html#K13">mlt</a> <span class="p1">(<span class="default"><font color="Maroon">i</font> <a href="newton.html#K1">|-&gt;</a> 1</span>)</span>,<font color="Maroon">R</font> = 
1 <a href="rvsum_1.html#K10">*</a> <font color="Maroon">R</font>
<b>by </b><i><a class="ref" href="rvsum_1.html#T92">RVSUM_1:92</a></i>
<br/>.= 
<font color="Maroon">R</font>
<b>by </b><i><a class="ref" href="rvsum_1.html#T74">RVSUM_1:74</a></i>
;<br/>


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