<?xml version="1.0"?>
<div class="add">

<a NAME="E1:8_1_1"/>
 <a href="prob_1.html#K2">Union</a> <font color="Maroon">c<sub>2</sub></font> <a href="tarski.html#R1">c=</a> <font color="Maroon">c<sub>1</sub></font>
 
;<br/>
<b>hence </b><a NAME="E2:8_1_1"/>
 <a href="card_3.html#K3">Union</a> <font color="Maroon">c<sub>2</sub></font> is   <a href="subset_1.html#NM2">Subset</a> of <font color="Maroon">c<sub>1</sub></font>
 ;<br/>


</div>
