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<b>let </b><font color="Maroon">c<sub>1</sub></font> be    <a href="hidden.html#M1">set</a> ;<br/>

<b>given </b><font color="Maroon">c<sub>2</sub></font>, <font color="Maroon">c<sub>3</sub></font>, <font color="Maroon">c<sub>4</sub></font>, <font color="Maroon">c<sub>5</sub></font> being    <a href="hidden.html#M1">set</a> <b> such that </b><a NAME="E1:6"/><i><font color="Green">E10</font></i>: 
<font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="mcart_1.html#K4">[</a><span class="default"><font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>5</sub></font></span><a href="mcart_1.html#K4">]</a></span>
 ;<br/>

<a NAME="E2:6"/>
( <font color="Maroon">c<sub>1</sub></font> <a href="recdef_2.html#K4" target="_self">`1_4</a>  <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>2</sub></font> &amp; <font color="Maroon">c<sub>1</sub></font> <a href="recdef_2.html#K5" target="_self">`2_4</a>  <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>3</sub></font> &amp; <font color="Maroon">c<sub>1</sub></font> <a href="recdef_2.html#K6" target="_self">`3_4</a>  <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>4</sub></font> &amp; <font color="Maroon">c<sub>1</sub></font> <a href="recdef_2.html#K7" target="_self">`4_4</a>  <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>5</sub></font> )
 
<b>by </b><i><a class="txt" href="recdef_2.html#E1:6"><i><font color="Green">E10</font></i></a>, <a class="ref" href="recdef_2.html#D4" target="_self">Def4</a>, <a class="ref" href="recdef_2.html#D5" target="_self">Def5</a>, <a class="ref" href="recdef_2.html#D6" target="_self">Def6</a>, <a class="ref" href="recdef_2.html#D7" target="_self">Def7</a></i>;<br/>
<b>hence </b><a NAME="E3:6"/>
<font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="mcart_1.html#K4">[</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="recdef_2.html#K4" target="_self">`1_4</a> </span>)</span>,<span class="p2">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="recdef_2.html#K5" target="_self">`2_4</a> </span>)</span>,<span class="p2">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="recdef_2.html#K6" target="_self">`3_4</a> </span>)</span>,<span class="p2">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="recdef_2.html#K7" target="_self">`4_4</a> </span>)</span></span><a href="mcart_1.html#K4">]</a></span>
 <b>by </b><i><a class="txt" href="recdef_2.html#E1:6"><i><font color="Green">E10</font></i></a></i>;<br/>


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