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<a NAME="E1:33_1_1"/>
<font color="Maroon" title="c2">a</font> <a href="gcd_1.html#R4" title="GCD_1:pred.4">is_associated_to</a> <font color="Maroon" title="c2">a</font>
 
;<br/>
<b>hence </b><a NAME="E2:33_1_1"/>
not  <a href="gcd_1.html#K2" title="GCD_1:func.2">Class</a> <font color="Maroon" title="c2">a</font> is <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>
 <b>by </b><i><a class="ref" href="gcd_1.html#D5" target="_self" title="GCD_1:def.5">Def5</a></i>;<br/>


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