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<b>let </b><font color="Maroon">A</font> be  non <a href="xboole_0.html#V1">empty</a>  <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">C</font> be   <a href="altcat_1.html#NM4">category</a>;<br/>



<b>assume </b><a NAME="E1:3"/><i><font color="Green">E35</font></i>: 
<font color="Maroon">C</font> <a href="hidden.html#R1">=</a>  <a href="msinst_1.html#K1" target="_self">MSSCat</a> <font color="Maroon">A</font>
 ;<br/>

<b>let </b><font color="Maroon">o</font> be   <a href="altcat_1.html#NM1">object</a> of <font color="Maroon">C</font>;<br/>

<b>reconsider </b><font color="Maroon">o</font> = <font color="Maroon">o</font> as    <a href="msalimit.html#M3">Element</a> of  <a href="msalimit.html#K5">MSS_set</a> <font color="Maroon">A</font> <b>by </b><i>, </i>;<br/>
<a NAME="E3:3"/>
<font color="Maroon">o</font> is  non <a href="struct_0.html#V3">empty</a> non <a href="msualg_1.html#V2">void</a>  <a href="msualg_1.html#L1">ManySortedSign</a> 
 
;<br/>
<b>hence </b><a NAME="E4:3"/>
<font color="Maroon">o</font> is  non <a href="struct_0.html#V3">empty</a> non <a href="msualg_1.html#V2">void</a>  <a href="msualg_1.html#L1">ManySortedSign</a> 
 ;<br/>


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