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<b>let </b><font color="Maroon">c<sub>1</sub></font> be   <a href="realset2.html#NM2">Field</a>;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font> be    <a href="subset_1.html#M2">Element</a> of <span class="p1">(<span class="default"><a href="realset2.html#K2">suppf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="subset_1.html#K6">\</a> <span class="p1"><a href="realset1.html#K5">{</a><span class="default"><span class="p2">(<span class="default"><a href="realset2.html#K4">ndf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span></span><a href="realset1.html#K5">}</a></span>;<br/>



<i><font color="Green">E16</font></i>: <span class="p1">(<span class="default"><a href="realset2.html#K5">omf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="binop_1.html#K2">.</a> <font color="Maroon">c<sub>2</sub></font>,<span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="realset3.html#K2" target="_self">ovf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="binop_1.html#K2">.</a> <span class="p2">(<span class="default"><a href="realset2.html#K6">nmf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span>,<font color="Maroon">c<sub>2</sub></font></span>)</span> = 
<span class="p1">(<span class="default"><a href="realset3.html#K2" target="_self">ovf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="binop_1.html#K2">.</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="realset2.html#K5">omf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="binop_1.html#K2">.</a> <font color="Maroon">c<sub>2</sub></font>,<span class="p2">(<span class="default"><a href="realset2.html#K6">nmf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span></span>)</span>,<font color="Maroon">c<sub>2</sub></font>
<b>by </b><i><a class="ref" href="realset3.html#T31" target="_self">Th31</a></i>
<br/>.= 
<span class="p1">(<span class="default"><a href="realset3.html#K2" target="_self">ovf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="binop_1.html#K2">.</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>2</sub></font>
<b>by </b><i><a class="ref" href="realset2.html#T25">REALSET2:25</a></i>
<br/>.= 
 <a href="realset2.html#K6">nmf</a> <font color="Maroon">c<sub>1</sub></font>
<b>by </b><i><a class="ref" href="realset3.html#T29" target="_self">Th29</a></i>
;<br/>
<b>thus </b><a NAME="E2:28"/>
( <span class="p1">(<span class="default"><a href="realset2.html#K5">omf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="binop_1.html#K2">.</a> <font color="Maroon">c<sub>2</sub></font>,<span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="realset3.html#K2" target="_self">ovf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="binop_1.html#K2">.</a> <span class="p2">(<span class="default"><a href="realset2.html#K6">nmf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span>,<font color="Maroon">c<sub>2</sub></font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="realset2.html#K6">nmf</a> <font color="Maroon">c<sub>1</sub></font> &amp; <span class="p1">(<span class="default"><a href="realset2.html#K5">omf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="binop_1.html#K2">.</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="realset3.html#K2" target="_self">ovf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="binop_1.html#K2">.</a> <span class="p2">(<span class="default"><a href="realset2.html#K6">nmf</a> <font color="Maroon">c<sub>1</sub></font></span>)</span>,<font color="Maroon">c<sub>2</sub></font></span>)</span>,<font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#R1">=</a>  <a href="realset2.html#K6">nmf</a> <font color="Maroon">c<sub>1</sub></font> )
 <b>by </b><i><a class="txt" href="realset3.html#E1:28"><i><font color="Green">E16</font></i></a>, <a class="ref" href="realset2.html#T24">REALSET2:24</a></i>;<br/>


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