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<b>let </b><font color="Maroon" title="c1">a</font> be  <a href="xxreal_0.html#V1" title="XXREAL_0:attr.1">ext-real</a>  <a href="ordinal1.html#NM1" title="ORDINAL1:NM.1">number</a> ;<br/>

<a NAME="E1:53"/>
<font color="Maroon" title="c1">a</font> <a href="xxreal_0.html#R1" title="XXREAL_0:pred.1">&lt;=</a>  <a href="xxreal_0.html#K1" title="XXREAL_0:func.1">+infty</a> 
 
<b>by </b><i><a class="ref" href="xxreal_0.html#D5" target="_self" title="XXREAL_0:def.5">Def5</a>, <a class="txt" href="xxreal_0.html#E7"><i><font color="Green" title="E4">Lm2</font></i></a>, <a class="txt" href="xxreal_0.html#E9"><i><font color="Green" title="E6">Lm4</font></i></a></i>;<br/>
<b>hence </b><a NAME="E2:53"/>
 <a href="xxreal_0.html#K4" title="XXREAL_0:func.4">max</a> <font color="Maroon" title="c1">a</font>,<a href="xxreal_0.html#K1" title="XXREAL_0:func.1">+infty</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="xxreal_0.html#K1" title="XXREAL_0:func.1">+infty</a> 
 <b>by </b><i><a class="ref" href="xxreal_0.html#D9" target="_self" title="XXREAL_0:def.9">Def9</a></i>;<br/>


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