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<b>let </b><font color="Maroon">SF</font> be   <a href="closure2.html#NM1">SubsetFamily</a> of <font color="Maroon">M</font>;<br/>

<b>assume </b><a NAME="E1:46_1_1"/><i><font color="Green">E36</font></i>: 
<font color="Maroon">SF</font> is <a href="closure2.html#V4" target="_self">absolutely-multiplicative</a>
 ;<br/>

<b>reconsider </b><font color="Maroon">a</font> =  <a href="xboole_0.html#K1">{}</a>  as   <a href="closure2.html#NM1">SubsetFamily</a> of <font color="Maroon">M</font> <b>by </b><i><a class="ref" href="xboole_1.html#T2">XBOOLE_1:2</a></i>;<br/>
<a NAME="E3:46_1_1"/>
<span class="p1"><a href="closure2.html#K5" target="_self">|:</a><span class="default"><font color="Maroon">a</font></span><a href="closure2.html#K5" target="_self">:|</a></span> <a href="pboole.html#R6">=</a>  <a href="pboole.html#K1">[0]</a> <font color="Maroon">I</font>
 
<b>by </b><i/>;<br/>
<a NAME="E4:46_1_1"/><b>then </b><i><font color="Green">E39</font></i>: 
 <a href="mssubfam.html#K6">meet</a> <span class="p1"><a href="closure2.html#K5" target="_self">|:</a><span class="default"><font color="Maroon">a</font></span><a href="closure2.html#K5" target="_self">:|</a></span> <a href="pboole.html#R6">=</a> <font color="Maroon">M</font>
 
<b>by </b><i><a class="ref" href="mssubfam.html#T41">MSSUBFAM:41</a></i>;<br/>
<a NAME="E5:46_1_1"/>
<font color="Maroon">a</font> <a href="tarski.html#R1">c=</a> <font color="Maroon">SF</font>
 
<b>by </b><i><a class="ref" href="xboole_1.html#T2">XBOOLE_1:2</a></i>;<br/>
<b>hence </b><a NAME="E6:46_1_1"/>
<font color="Maroon">M</font> <a href="hidden.html#R2">in</a> <font color="Maroon">SF</font>
 <b>by </b><i>, , </i>; <i><font color="Red">:: according to </font></i><a class="ref" href="closure2.html#D9" target="_self">CLOSURE2:def 9</a><br/>


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