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<a NAME="E1:15_1_1"/>
the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">L</font> is    <a href="lattice4.html#M2" target="_self">ClosedSubset</a> of <font color="Maroon">L</font>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:15_1_1"/>
not for <font color="Olive">b<sub>1</sub></font> being   <a href="lattice4.html#M2" target="_self">ClosedSubset</a> of <font color="Maroon">L</font> holds  <font color="Olive">b<sub>1</sub></font> is <a href="xboole_0.html#V1">empty</a>
 ;<br/>


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