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<b>let </b><font color="Maroon">c<sub>1</sub></font> be   <a href="nat_1.html#NM1">Nat</a>;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font> be    <a href="finseq_2.html#M2">Element</a> of <font color="Maroon">c<sub>1</sub></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#K16" target="_self">Product</a> <span class="p1">(<span class="default"><a href="rvsum_1.html#K12" target="_self">sqr</a> <font color="Maroon">c<sub>2</sub></font></span>)</span> = 
 <a href="rvsum_1.html#K16" target="_self">Product</a> <span class="p1">(<span class="default"><a href="rvsum_1.html#K14" target="_self">mlt</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>2</sub></font></span>)</span>
<b>by </b><i><a class="ref" href="rvsum_1.html#T97" target="_self">Th97</a></i>
<br/>.= 
<span class="p1">(<span class="default"><a href="rvsum_1.html#K16" target="_self">Product</a> <font color="Maroon">c<sub>2</sub></font></span>)</span> <a href="square_1.html#K3">^2</a> 
<b>by </b><i><a class="ref" href="rvsum_1.html#T137" target="_self">Th137</a></i>
;<br/>


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