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(  <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a>  is <a href="finset_1.html#V1" title="FINSET_1:attr.1">finite</a> &amp;  <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a>  is   <a href="partfun1.html#NM1" title="PARTFUN1:NM.1">PartFunc</a> of <font color="Maroon" title="c1">A</font>,<font color="Maroon" title="c2">B</font> )
 
<b>by </b><i><a class="ref" href="relset_1.html#T25" title="RELSET_1:th.25">RELSET_1:25</a></i>;<br/>
<b>hence </b><a NAME="E2:61_1_1"/>
 ex <font color="Olive">b<sub>1</sub></font> being  <a href="partfun1.html#NM1" title="PARTFUN1:NM.1">PartFunc</a> of <font color="Maroon" title="c1">A</font>,<font color="Maroon" title="c2">B</font> st <font color="Olive">b<sub>1</sub></font> is <a href="finset_1.html#V1" title="FINSET_1:attr.1">finite</a>
 ; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> verum</span><br/>


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