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<b>let </b><font color="Maroon" title="c1">z</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/>

<b>given </b><font color="Maroon" title="c2">a</font>, <font color="Maroon" title="c3">b</font>, <font color="Maroon" title="c4">c</font> being    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> <b> such that </b><a NAME="E1:2"/><i><font color="Green" title="E5">A1</font></i>: 
<font color="Maroon" title="c1">z</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="mcart_1.html#K3" title="MCART_1:func.3">[</a><span class="default"><font color="Maroon" title="c2">a</font>,<font color="Maroon" title="c3">b</font>,<font color="Maroon" title="c4">c</font></span><a href="mcart_1.html#K3" title="MCART_1:func.3">]</a></span>
 ;<br/>

<a NAME="E2:2"/>
( <font color="Maroon" title="c1">z</font> <a href="recdef_2.html#K1" title="RECDEF_2:func.1">`1_3</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">a</font> &amp; <font color="Maroon" title="c1">z</font> <a href="recdef_2.html#K2" title="RECDEF_2:func.2">`2_3</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c3">b</font> &amp; <font color="Maroon" title="c1">z</font> <a href="recdef_2.html#K3" title="RECDEF_2:func.3">`3_3</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c4">c</font> )
 
<b>by </b><i><a class="txt" href="recdef_2.html#E1:2"><i><font color="Green" title="E5">A1</font></i></a>, <a class="ref" href="recdef_2.html#D1" target="_self" title="RECDEF_2:def.1">Def1</a>, <a class="ref" href="recdef_2.html#D2" target="_self" title="RECDEF_2:def.2">Def2</a>, <a class="ref" href="recdef_2.html#D3" target="_self" title="RECDEF_2:def.3">Def3</a></i>;<br/>
<b>hence </b><a NAME="E3:2"/>
<font color="Maroon" title="c1">z</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="mcart_1.html#K3" title="MCART_1:func.3">[</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon" title="c1">z</font> <a href="recdef_2.html#K1" title="RECDEF_2:func.1">`1_3</a> </span>)</span>,<span class="p2">(<span class="default"><font color="Maroon" title="c1">z</font> <a href="recdef_2.html#K2" title="RECDEF_2:func.2">`2_3</a> </span>)</span>,<span class="p2">(<span class="default"><font color="Maroon" title="c1">z</font> <a href="recdef_2.html#K3" title="RECDEF_2:func.3">`3_3</a> </span>)</span></span><a href="mcart_1.html#K3" title="MCART_1:func.3">]</a></span>
 <b>by </b><i><a class="txt" href="recdef_2.html#E1:2"><i><font color="Green" title="E5">A1</font></i></a></i>;<br/>


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