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<b>reconsider </b><font color="Maroon" title="c2">E</font> =  <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a>  as    <a href="eqrel_1.html#M2" title="EQREL_1:mode.2">Family-Class</a> of <font color="Maroon" title="c1">X</font> <b>by </b><i><a class="txt" href="eqrel_1.html#E61"><i><font color="Green" title="E29">Lm1</font></i></a></i>;<br/>
<b>take </b>
<font color="Maroon" title="c2">E</font>
;<br/>

<b>let </b><font color="Maroon" title="c3">S</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ; <i><font color="Red">:: according to </font></i><a class="ref" href="eqrel_1.html#D10" target="_self" title="EQREL_1:def.10">EQREL_1:def 10</a><br/>

<b>assume </b><a NAME="E2:59_1_1"/>
<font color="Maroon" title="c3">S</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">E</font>
 ;<br/>

<b>hence </b><a NAME="E3:59_1_1"/>
<font color="Maroon" title="c3">S</font> is    <a href="eqrel_1.html#M1" title="EQREL_1:mode.1">a_partition</a> of <font color="Maroon" title="c1">X</font>
 ;<br/>


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