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<a NAME="E1:53_1_1"/>
 <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a>  <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <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/>
<a NAME="E2:53_1_1"/><b>then </b>
 <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a>  <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="ami_1.html#K13" title="AMI_1:func.13">FinPartSt</a> <font color="Maroon" title="c2">S</font>
 
;<br/>
<b>hence </b><a NAME="E3:53_1_1"/>
not  <a href="ami_1.html#K13" title="AMI_1:func.13">FinPartSt</a> <font color="Maroon" title="c2">S</font> is <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>
 ;<br/>

<b>thus </b><a NAME="E4:53_1_1"/>
 <a href="ami_1.html#K13" title="AMI_1:func.13">FinPartSt</a> <font color="Maroon" title="c2">S</font> is <a href="fraenkel.html#V1" title="FRAENKEL:attr.1">functional</a>
 ;<br/>


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