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<b>let </b><font color="Maroon">p</font> be   <a href="rat_1.html#NM1">Rational</a>;<br/>

<a NAME="E1:33"/>
0 <a href="xxreal_0.html#NR3" target="_self">&lt;</a>  <a href="rat_1.html#K1" target="_self">denominator</a> <font color="Maroon">p</font>
 
<b>by </b><i/>;<br/>
<a NAME="E2:33"/><b>then </b>
0 <a href="nat_1.html#K1">+</a> 1 <a href="xxreal_0.html#R1">&lt;=</a>  <a href="rat_1.html#K1" target="_self">denominator</a> <font color="Maroon">p</font>
 
<b>by </b><i><a class="ref" href="nat_1.html#T38">NAT_1:38</a></i>;<br/>
<b>hence </b><a NAME="E3:33"/>
1 <a href="xxreal_0.html#R1">&lt;=</a>  <a href="rat_1.html#K1" target="_self">denominator</a> <font color="Maroon">p</font>
 ;<br/>


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