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<a NAME="E1:22_1_1"/>
 <a href="prob_1.html#K2">Union</a> <font color="Maroon">Un</font> <a href="tarski.html#R1">c=</a>  <a href="pcomps_1.html#K1">bool</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">T</font>
 
;<br/>
<b>hence </b><a NAME="E2:22_1_1"/>
 <a href="card_3.html#K3">Union</a> <font color="Maroon">Un</font> is   <a href="struct_0.html#NM3">Subset-Family</a> of <font color="Maroon">T</font>
 ;<br/>


</div>
