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<a NAME="E1:3_1_1"/>
<font color="Maroon">R1</font> <a href="relset_1.html#K2">/\</a> <font color="Maroon">R2</font> <a href="tarski.html#R1">c=</a> <span class="p1"><a href="zfmisc_1.html#K2">[:</a><span class="default"><font color="Maroon">X</font>,<font color="Maroon">X</font></span><a href="zfmisc_1.html#K2">:]</a></span>
 
;<br/>
<b>hence </b><a NAME="E2:3_1_1"/>
<font color="Maroon">R1</font> <a href="xboole_0.html#K3">/\</a> <font color="Maroon">R2</font> is   <a href="relset_1.html#NM3">Relation</a> of <font color="Maroon">X</font>
 ;<br/>


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