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<a NAME="E1:56_2_1"/>
 <a href="kurato_1.html#K2" target="_self">Kurat14Set</a> <a href="kurato_1.html#K6" target="_self">KurExSet</a>  <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><span class="p2"><a href="tarski.html#K2">{</a><span class="default"><a href="kurato_1.html#K6" target="_self">KurExSet</a> ,<span class="p3">(<span class="default"><a href="kurato_1.html#K6" target="_self">KurExSet</a>  <a href="subset_1.html#K3">`</a> </span>)</span></span><a href="tarski.html#K2">}</a></span> <a href="xboole_0.html#K2">\/</a> <span class="p2">(<span class="default"><a href="kurato_1.html#K3" target="_self">Kurat14ClPart</a> <a href="kurato_1.html#K6" target="_self">KurExSet</a> </span>)</span></span>)</span> <a href="xboole_0.html#K2">\/</a> <span class="p1">(<span class="default"><a href="kurato_1.html#K4" target="_self">Kurat14OpPart</a> <a href="kurato_1.html#K6" target="_self">KurExSet</a> </span>)</span>
 
<b>by </b><i><a class="ref" href="kurato_1.html#T5" target="_self">Th5</a></i>;<br/>
<a NAME="E2:56_2_1"/><b>then </b>
 <a href="kurato_1.html#K4" target="_self">Kurat14OpPart</a> <a href="kurato_1.html#K6" target="_self">KurExSet</a>  <a href="tarski.html#R1">c=</a>  <a href="kurato_1.html#K2" target="_self">Kurat14Set</a> <a href="kurato_1.html#K6" target="_self">KurExSet</a> 
 
<b>by </b><i><a class="ref" href="xboole_1.html#T7">XBOOLE_1:7</a></i>;<br/>
<b>hence </b><a NAME="E3:56_2_1"/>
 <a href="kurato_1.html#K4" target="_self">Kurat14OpPart</a> <a href="kurato_1.html#K6" target="_self">KurExSet</a>  is <a href="setfam_1.html#V1">with_non-empty_elements</a>
 <b>by </b><i><a class="ref" href="kurato_1.html#T59" target="_self">Th59</a></i>;<br/>


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