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<b>let </b><font color="Maroon">X</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">A</font> be   <a href="ordinal1.html#NM2">Ordinal</a>;<br/>



<a NAME="E1:40"/>
 <a href="classes1.html#K4" target="_self">Rank</a> <font color="Maroon">A</font> is <a href="ordinal1.html#V1">epsilon-transitive</a>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:40"/>
( <font color="Maroon">X</font> <a href="hidden.html#R2">in</a>  <a href="classes1.html#K4" target="_self">Rank</a> <font color="Maroon">A</font> implies <font color="Maroon">X</font> <a href="tarski.html#R1">c=</a>  <a href="classes1.html#K4" target="_self">Rank</a> <font color="Maroon">A</font> )
 <b>by </b><i><a class="ref" href="ordinal1.html#D2">ORDINAL1:def 2</a></i>;<br/>


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