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<a NAME="E1:49_1_1"/><i><font color="Green">E51</font></i>: 
<font color="Maroon">D</font> <a href="afinsq_1.html#K10">^omega</a>  is <a href="fraenkel.html#V1">functional</a>
 
<b>by </b><i/>;<br/>
<a NAME="E2:49_1_1"/>
for <font color="Olive">x</font> being   <a href="hidden.html#M1">set</a>   st <font color="Olive">x</font> <a href="hidden.html#R2">in</a> <font color="Maroon">D</font> <a href="afinsq_1.html#K10">^omega</a>  holds <br/><font color="Olive">x</font> is   <a href="afinsq_1.html#NM2">XFinSequence</a> of <font color="Maroon">D</font>
 
<b>by </b><i><a class="ref" href="afinsq_1.html#D8">AFINSQ_1:def 8</a></i>;<br/>
<b>hence </b><a NAME="E3:49_1_1"/>
<font color="Maroon">D</font> <a href="afinsq_1.html#K10">^omega</a>  is    <a href="catalan2.html#M1" target="_self">OMEGA</a> of <font color="Maroon">D</font>
 <b>by </b><i>, </i>;<br/>


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