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<b>let </b><font color="Maroon">c<sub>3</sub></font> be   <a href="struct_0.html#NM2">Subset</a> of <font color="Maroon">c<sub>1</sub></font>; <i><font color="Red">:: according to </font></i><a class="ref" href="kurato_1.html#D7" target="_self">KURATO_1:def 7</a><br/>

<b>assume </b><a NAME="E1:70_3_1"/>
<font color="Maroon">c<sub>3</sub></font> <a href="hidden.html#R2">in</a>  <a href="kurato_1.html#K5" target="_self">Kurat7Set</a> <font color="Maroon">c<sub>2</sub></font>
 ;<br/>

<b>hence </b><a NAME="E2:70_3_1"/>
 <a href="pre_topc.html#K4">Cl</a> <font color="Maroon">c<sub>3</sub></font> <a href="hidden.html#R2">in</a>  <a href="kurato_1.html#K5" target="_self">Kurat7Set</a> <font color="Maroon">c<sub>2</sub></font>
 <b>by </b><i><a class="ref" href="kurato_1.html#T10" target="_self">Th10</a></i>;<br/>


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