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<b>let </b><font color="Maroon">n</font> be   <a href="int_1.html#NM1">Integer</a>, <font color="Maroon">m</font> be   <a href="int_1.html#NM1">Integer</a>;<br/>

<b>assume </b><a NAME="E1:12"/><i><font color="Green">E19</font></i>: 
( <font color="Maroon">n</font> <a href="xxreal_0.html#NR2" target="_self">&gt;=</a> 0 &amp; <font color="Maroon">m</font> <a href="xxreal_0.html#NR4" target="_self">&gt;</a> 0 )
 ;<br/>

<b>then reconsider </b><font color="Maroon">n2</font> = <font color="Maroon">n</font>, <font color="Maroon">m2</font> = <font color="Maroon">m</font> as    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K5">NAT</a>  <b>by </b><i><a class="ref" href="int_1.html#T16">INT_1:16</a></i>;<br/>
<a NAME="E3:12"/>
 <a href="prgcor_1.html#K1" target="_self">idiv1_prg</a> <font color="Maroon">n</font>,<font color="Maroon">m</font> <a href="hidden.html#R1">=</a> <font color="Maroon">n2</font> <a href="nat_1.html#K5">div</a> <font color="Maroon">m2</font>
 
<b>by </b><i>, </i>;<br/>
<b>hence </b><a NAME="E4:12"/>
 <a href="prgcor_1.html#K1" target="_self">idiv1_prg</a> <font color="Maroon">n</font>,<font color="Maroon">m</font> <a href="hidden.html#R1">=</a> <font color="Maroon">n</font> <a href="int_1.html#K5">div</a> <font color="Maroon">m</font>
 <b>by </b><i><a class="ref" href="newton.html#T101">NEWTON:101</a></i>;<br/>


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