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<b>let </b><font color="Maroon">n</font> be    <a href="ordinal1.html#NM1" target="_self">number</a> ;<br/>

<b>assume </b><a NAME="E1:10_1_1"/>
<font color="Maroon">n</font> is <a href="int_1.html#V1" target="_self">integer</a>
 ;<br/>

<a NAME="E2:10_1_1"/><b>then </b>
<font color="Maroon">n</font> is    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K4">INT</a> 
 
<b>by </b><i/>;<br/>
<b>then reconsider </b><font color="Maroon">n</font> = <font color="Maroon">n</font> as    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K1">REAL</a>  <b>by </b><i/>;<br/>
<a NAME="E4:10_1_1"/>
<font color="Maroon">n</font> is <a href="xreal_0.html#V1">real</a>
 
;<br/>
<b>hence </b><a NAME="E5:10_1_1"/>
<font color="Maroon">n</font> is <a href="xreal_0.html#V1">real</a>
 ;<br/>


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