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<b>let </b><font color="Maroon">x1</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">x2</font> be    <a href="hidden.html#M1">set</a> ;<br/>



<b>thus </b><span class="p1"><a href="enumset1.html#K3" target="_self">{</a><span class="default"><font color="Maroon">x1</font>,<font color="Maroon">x1</font>,<font color="Maroon">x1</font>,<font color="Maroon">x1</font>,<font color="Maroon">x2</font></span><a href="enumset1.html#K3" target="_self">}</a></span> = 
<span class="p1"><a href="enumset1.html#K1" target="_self">{</a><span class="default"><font color="Maroon">x1</font>,<font color="Maroon">x1</font>,<font color="Maroon">x2</font></span><a href="enumset1.html#K1" target="_self">}</a></span>
<b>by </b><i><a class="txt" href="enumset1.html#E62"><i><font color="Green">Lemma43</font></i></a></i>
<br/>.= 
<span class="p1"><a href="tarski.html#K2">{</a><span class="default"><font color="Maroon">x1</font>,<font color="Maroon">x2</font></span><a href="tarski.html#K2">}</a></span>
<b>by </b><i><a class="ref" href="enumset1.html#T45" target="_self">Th45</a></i>
;<br/>


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