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<b>let </b><font color="Maroon">x1</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K1">REAL</a> ; <i><font color="Red">:: according to </font></i><a class="ref" href="binop_1.html#D20">BINOP_1:def 20</a><br/><b>let </b><font color="Maroon">x2</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K1">REAL</a> ;<br/>



<b>thus </b><a href="rvsum_1.html#K1" target="_self">sqrreal</a>  <a href="seq_1.html#K2">.</a> <span class="p1">(<span class="default"><a href="binop_2.html#K35">multreal</a>  <a href="binop_1.html#K2">.</a> <font color="Maroon">x1</font>,<font color="Maroon">x2</font></span>)</span> = 
<a href="rvsum_1.html#K1" target="_self">sqrreal</a>  <a href="seq_1.html#K2">.</a> <span class="p1">(<span class="default"><font color="Maroon">x1</font> <a href="binop_2.html#K11">*</a> <font color="Maroon">x2</font></span>)</span>
<b>by </b><i><a class="ref" href="binop_2.html#D11">BINOP_2:def 11</a></i>
<br/>.= 
<span class="p1">(<span class="default"><font color="Maroon">x1</font> <a href="binop_2.html#K11">*</a> <font color="Maroon">x2</font></span>)</span> <a href="square_1.html#K5">^2</a> 
<b>by </b><i/>
<br/>.= 
<span class="p1">(<span class="default"><font color="Maroon">x1</font> <a href="square_1.html#K5">^2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p1">(<span class="default"><font color="Maroon">x2</font> <a href="square_1.html#K5">^2</a> </span>)</span>

<br/>.= 
<a href="binop_2.html#K35">multreal</a>  <a href="binop_1.html#K2">.</a> <span class="p1">(<span class="default"><font color="Maroon">x1</font> <a href="square_1.html#K5">^2</a> </span>)</span>,<span class="p1">(<span class="default"><font color="Maroon">x2</font> <a href="square_1.html#K5">^2</a> </span>)</span>
<b>by </b><i><a class="ref" href="binop_2.html#D11">BINOP_2:def 11</a></i>
<br/>.= 
<a href="binop_2.html#K35">multreal</a>  <a href="binop_1.html#K2">.</a> <span class="p1">(<span class="default"><a href="rvsum_1.html#K1" target="_self">sqrreal</a>  <a href="seq_1.html#K2">.</a> <font color="Maroon">x1</font></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon">x2</font> <a href="square_1.html#K5">^2</a> </span>)</span>
<b>by </b><i/>
<br/>.= 
<a href="binop_2.html#K35">multreal</a>  <a href="binop_1.html#K2">.</a> <span class="p1">(<span class="default"><a href="rvsum_1.html#K1" target="_self">sqrreal</a>  <a href="seq_1.html#K2">.</a> <font color="Maroon">x1</font></span>)</span>,<span class="p1">(<span class="default"><a href="rvsum_1.html#K1" target="_self">sqrreal</a>  <a href="seq_1.html#K2">.</a> <font color="Maroon">x2</font></span>)</span>
<b>by </b><i/>
;<br/>


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