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<a NAME="E1:3_1_1"/>
 <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a>  is    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="card_3.html#K8" title="CARD_3:func.8">sproduct</a> the <a href="ami_1.html#U4" title="AMI_1:sel.4">Object-Kind</a> of <font color="Maroon" title="c2">S</font>
 
<b>by </b><i><a class="ref" href="card_3.html#T66" title="CARD_3:th.66">CARD_3:66</a></i>;<br/>
<b>then reconsider </b><font color="Maroon" title="c3">a</font> =  <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a>  as   <a href="ami_1.html#NM5" title="AMI_1:NM.5">FinPartState</a> of <font color="Maroon" title="c2">S</font> <b>by </b><i><a class="ref" href="ami_1.html#T77" title="AMI_1:th.77">AMI_1:77</a></i>;<br/>
<b>take </b>
<font color="Maroon" title="c3">a</font>
;<br/>

<b>thus </b><a NAME="E3:3_1_1"/>
<font color="Maroon" title="c3">a</font> is <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>
 ;<br/>


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