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<b>let </b><font color="Maroon">c<sub>1</sub></font>, <font color="Maroon">c<sub>2</sub></font>, <font color="Maroon">c<sub>3</sub></font> be   <a href="pre_topc.html#NM2">Point</a> of <span class="p1">(<span class="default"><a href="euclid.html#K15">TOP-REAL</a> 3</span>)</span>;<br/>





<a NAME="E1:25"/><i><font color="Green">E18</font></i>: 
<font color="Maroon">c<sub>2</sub></font> <a href="euclid.html#K17">+</a> <font color="Maroon">c<sub>3</sub></font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="euclid_5.html#K4" target="_self">|[</a><span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K9">+</a> <span class="p3">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K9">+</a> <span class="p3">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K9">+</a> <span class="p3">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span><a href="euclid_5.html#K4" target="_self">]|</a></span>
 
<b>by </b><i><a class="ref" href="euclid_5.html#T5" target="_self">Th5</a></i>;<br/>
<a NAME="E2:25"/><b>then </b><i><font color="Green">E19</font></i>: 
<span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid.html#K17">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="euclid_5.html#K1" target="_self">`1</a>  <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K9">+</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span>
 
<b>by </b><i><a class="ref" href="euclid_5.html#T2" target="_self">Th2</a></i>;<br/>
<a NAME="E3:25"/><i><font color="Green">E20</font></i>: 
<span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid.html#K17">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="euclid_5.html#K2" target="_self">`2</a>  <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K9">+</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span>
 
<b>by </b><i><a class="txt" href="euclid_5.html#E1:25"><i><font color="Green">E18</font></i></a>, <a class="ref" href="euclid_5.html#T2" target="_self">Th2</a></i>;<br/>
<a NAME="E4:25"/><i><font color="Green">E21</font></i>: 
<span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid.html#K17">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="euclid_5.html#K3" target="_self">`3</a>  <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K9">+</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span>
 
<b>by </b><i><a class="txt" href="euclid_5.html#E1:25"><i><font color="Green">E18</font></i></a>, <a class="ref" href="euclid_5.html#T2" target="_self">Th2</a></i>;<br/>
<i><font color="Green">E22</font></i>: <font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K5" target="_self">&lt;X&gt;</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid.html#K17">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> = 
<span class="p1"><a href="euclid_5.html#K4" target="_self">|[</a><span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid.html#K17">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid.html#K17">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid.html#K17">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid.html#K17">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid.html#K17">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid.html#K17">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span></span>)</span></span><a href="euclid_5.html#K4" target="_self">]|</a></span>

<br/>.= 
<span class="p1"><a href="euclid_5.html#K4" target="_self">|[</a><span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><span class="p5">(<span class="default"><span class="p0">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p0">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p5">(<span class="default"><span class="p0">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p0">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K9">+</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><span class="p5">(<span class="default"><span class="p0">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p0">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p5">(<span class="default"><span class="p0">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p0">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K9">+</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><span class="p5">(<span class="default"><span class="p0">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p0">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p5">(<span class="default"><span class="p0">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p0">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K9">+</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span></span>)</span></span><a href="euclid_5.html#K4" target="_self">]|</a></span>
<b>by </b><i><a class="txt" href="euclid_5.html#E2:25"><i><font color="Green">E19</font></i></a>, <a class="txt" href="euclid_5.html#E3:25"><i><font color="Green">E20</font></i></a>, <a class="txt" href="euclid_5.html#E4:25"><i><font color="Green">E21</font></i></a></i>
;<br/>
<span class="p1">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K5" target="_self">&lt;X&gt;</a> <font color="Maroon">c<sub>2</sub></font></span>)</span> <a href="euclid.html#K17">+</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K5" target="_self">&lt;X&gt;</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> = 
<span class="p1"><a href="euclid_5.html#K4" target="_self">|[</a><span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span></span>)</span></span><a href="euclid_5.html#K4" target="_self">]|</a></span> <a href="euclid.html#K17">+</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K5" target="_self">&lt;X&gt;</a> <font color="Maroon">c<sub>3</sub></font></span>)</span>

<br/>.= 
<span class="p1"><a href="euclid_5.html#K4" target="_self">|[</a><span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span></span>)</span></span><a href="euclid_5.html#K4" target="_self">]|</a></span> <a href="euclid.html#K17">+</a> <span class="p1"><a href="euclid_5.html#K4" target="_self">|[</a><span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span></span>)</span></span><a href="euclid_5.html#K4" target="_self">]|</a></span>

<br/>.= 
<span class="p1"><a href="euclid_5.html#K4" target="_self">|[</a><span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K9">+</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K9">+</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K9">+</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span></span>)</span></span>)</span></span><a href="euclid_5.html#K4" target="_self">]|</a></span>
<b>by </b><i><a class="ref" href="euclid_5.html#T6" target="_self">Th6</a></i>
<br/>.= 
<span class="p1"><a href="euclid_5.html#K4" target="_self">|[</a><span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><span class="p5">(<span class="default"><span class="p0">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p0">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p5">(<span class="default"><span class="p0">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p0">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K9">+</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><span class="p5">(<span class="default"><span class="p0">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p0">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p5">(<span class="default"><span class="p0">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p0">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K9">+</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K3" target="_self">`3</a> </span>)</span></span>)</span></span>)</span>,<span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><span class="p5">(<span class="default"><span class="p0">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p0">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p5">(<span class="default"><span class="p0">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p0">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K9">+</a> <span class="p4">(<span class="default"><span class="p5">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p5">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span></span>)</span></span>)</span> <a href="binop_2.html#K10">-</a> <span class="p3">(<span class="default"><span class="p4">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K2" target="_self">`2</a> </span>)</span> <a href="binop_2.html#K11">*</a> <span class="p4">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="euclid_5.html#K1" target="_self">`1</a> </span>)</span></span>)</span></span>)</span></span><a href="euclid_5.html#K4" target="_self">]|</a></span>

;<br/>
<b>hence </b><a NAME="E7:25"/>
<font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K5" target="_self">&lt;X&gt;</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="euclid.html#K17">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K5" target="_self">&lt;X&gt;</a> <font color="Maroon">c<sub>2</sub></font></span>)</span> <a href="euclid.html#K17">+</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="euclid_5.html#K5" target="_self">&lt;X&gt;</a> <font color="Maroon">c<sub>3</sub></font></span>)</span>
 <b>by </b><i><a class="txt" href="euclid_5.html#E5:25"><i><font color="Green">E22</font></i></a></i>;<br/>


</div>
