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<b>let </b><font color="Maroon">F</font> be    <a href="finseq_1.html#M2">FinSequence</a> of  <a href="numbers.html#K1">REAL</a> ;<br/>

<b>set </b><font color="Maroon">n</font> =  <a href="finseq_1.html#K3">len</a> <font color="Maroon">F</font>;<br/>
<b>reconsider </b><font color="Maroon">R</font> = <font color="Maroon">F</font> as    <a href="finseq_2.html#M2">Element</a> of <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">F</font></span>)</span> <a href="finseq_2.html#K4">-tuples_on</a> <a href="numbers.html#K1">REAL</a>  <b>by </b><i><a class="ref" href="finseq_2.html#T110">FINSEQ_2:110</a></i>;<br/>
<a NAME="E2:6"/>
<span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">F</font></span>)</span> <a href="finseqop.html#K4">|-&gt;</a> 0</span>)</span> <a href="rvsum_1.html#K8">-</a> <font color="Maroon">R</font> <a href="hidden.html#R1">=</a>  <a href="rvsum_1.html#K6">-</a> <font color="Maroon">R</font>
 
<b>by </b><i><a class="ref" href="rvsum_1.html#T54">RVSUM_1:54</a></i>;<br/>
<b>hence </b><a NAME="E3:6"/>
<span class="p1">(<span class="default"><a href="euclid.html#K5">0*</a> <span class="p2">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">F</font></span>)</span></span>)</span> <a href="rvsum_1.html#K7">-</a> <font color="Maroon">F</font> <a href="hidden.html#R1">=</a>  <a href="rvsum_1.html#K5">-</a> <font color="Maroon">F</font>
 <b>by </b><i><a class="ref" href="euclid.html#D4">EUCLID:def 4</a></i>;<br/>


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