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<b>consider </b><font color="Maroon" title="c5">x</font> being    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> <b> such that </b><br/><a NAME="E2:34_1_1"/><i><font color="Green" title="E16">A1</font></i>: 
<font color="Maroon" title="c5">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> the <a href="msualg_1.html#U4" title="MSUALG_1:sel.4">Sorts</a> of <font color="Maroon" title="c2">A</font> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <font color="Maroon" title="c4">s1</font>
 <b>by </b><i><a class="ref" href="xboole_0.html#D1" title="XBOOLE_0:def.1">XBOOLE_0:def 1</a></i>;<br/>
<a NAME="E3:34_1_1"/>
 <a href="eqrel_1.html#K6" title="EQREL_1:func.6">Class</a> <span class="p1">(<span class="default"><a href="osalg_4.html#K5" title="OSALG_4:func.5">CompClass</a> <font color="Maroon" title="c3">E</font>,<span class="p2">(<span class="default"><a href="osalg_4.html#K3" title="OSALG_4:func.3">CComp</a> <font color="Maroon" title="c4">s1</font></span>)</span></span>)</span>,<font color="Maroon" title="c5">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="osalg_4.html#K6" title="OSALG_4:func.6">OSClass</a> <font color="Maroon" title="c3">E</font>,<font color="Maroon" title="c4">s1</font>
 
<b>by </b><i><a class="txt" href="osalg_4.html#E2:34_1_1"><i><font color="Green" title="E16">A1</font></i></a>, <a class="ref" href="osalg_4.html#D12" target="_self" title="OSALG_4:def.12">Def12</a></i>;<br/>
<b>hence </b><a NAME="E4:34_1_1"/>
not  <a href="osalg_4.html#K6" title="OSALG_4:func.6">OSClass</a> <font color="Maroon" title="c3">E</font>,<font color="Maroon" title="c4">s1</font> is <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</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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