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<a NAME="E1:28_1_1"/>
<font color="Maroon" title="c1">a</font>,<font color="Maroon" title="c2">M</font> <a href="xboole_0.html#R3" title="XBOOLE_0:pred.3">are_c=-comparable</a> 
 
<b>by </b><i><a class="ref" href="ordinal1.html#T25" title="ORDINAL1:th.25">ORDINAL1:25</a></i>;<br/>
<a NAME="E2:28_1_1"/><b>then </b>
( <font color="Maroon" title="c1">a</font> <a href="card_1.html#NR1" title="CARD_1:NR.1">&lt;=`</a> <font color="Maroon" title="c2">M</font> or <font color="Maroon" title="c2">M</font> <a href="card_1.html#NR1" title="CARD_1:NR.1">&lt;=`</a> <font color="Maroon" title="c1">a</font> )
 
<b>by </b><i><a class="ref" href="xboole_0.html#D9" title="XBOOLE_0:def.9">XBOOLE_0:def 9</a></i>;<br/>
<a NAME="E3:28_1_1"/><b>then </b>
( ( <font color="Maroon" title="c1">a</font> <a href="card_2.html#K1" title="CARD_2:func.1">+`</a> <font color="Maroon" title="c2">M</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">M</font> &amp; <font color="Maroon" title="c2">M</font> is   <a href="card_5.html#NM1" title="CARD_5:NM.1">Aleph</a> ) or <font color="Maroon" title="c1">a</font> <a href="card_2.html#K1" title="CARD_2:func.1">+`</a> <font color="Maroon" title="c2">M</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c1">a</font> )
 
<b>by </b><i><a class="ref" href="card_5.html#T26" target="_self" title="CARD_5:th.26">Th26</a>, <a class="ref" href="card_5.html#T27" target="_self" title="CARD_5:th.27">Th27</a>, <a class="ref" href="card_4.html#T34" title="CARD_4:th.34">CARD_4:34</a></i>;<br/>
<b>hence </b><a NAME="E4:28_1_1"/>
not <font color="Maroon" title="c1">a</font> <a href="card_2.html#K1" title="CARD_2:func.1">+`</a> <font color="Maroon" title="c2">M</font> is <a href="finset_1.html#V1" title="FINSET_1:attr.1">finite</a>
 ;<br/>


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