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<b>let </b><font color="Maroon">b</font> be  <a href="ordinal1.html#V7">natural</a>  <a href="ordinal1.html#NM1" target="_self">number</a> ;<br/><b>let </b><font color="Maroon">a</font> be  <a href="ordinal1.html#V7">natural</a>  <a href="ordinal1.html#NM1" target="_self">number</a> ;<br/>



<b>assume </b><b>that </b><br/><a NAME="E1:73"/><i><font color="Green">E41</font></i>: 
not <font color="Maroon">b</font> is <a href="xboole_0.html#V1">empty</a>
 <b>and </b><br/><a NAME="E2:73"/><i><font color="Green">E43</font></i>: 
<font color="Maroon">a</font> is   <a href="newton.html#NM1">Prime</a>
 <b>and </b><br/><a NAME="E3:73"/><i><font color="Green">E47</font></i>: 
<font color="Maroon">a</font> <a href="nat_1.html#R1">divides</a> <font color="Maroon">b</font>
 ;<br/>

<a NAME="E4:73"/>
1 <a href="xxreal_0.html#R1">&lt;</a> <font color="Maroon">a</font>
 
<b>by </b><i><a class="txt" href="nat_3.html#E1:73"><i><font color="Green">E41</font></i></a>, <a class="ref" href="int_2.html#D5">INT_2:def 5</a></i>;<br/>
<a NAME="E5:73"/><b>then </b><i><font color="Green">E49</font></i>: 
<font color="Maroon">a</font> <a href="nat_3.html#K11" target="_self">|-count</a> <font color="Maroon">b</font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> 0
 
<b>by </b><i>, , </i>;<br/>
<a NAME="E6:73"/>
<span class="p1">(<span class="default"><a href="nat_3.html#NK13" target="_self">pfexp</a> <font color="Maroon">b</font></span>)</span> <a href="polynom1.html#K8">.</a> <font color="Maroon">a</font> <a href="hidden.html#R1">=</a> <font color="Maroon">a</font> <a href="nat_3.html#K11" target="_self">|-count</a> <font color="Maroon">b</font>
 
<b>by </b><i><a class="txt" href="nat_3.html#E1:73"><i><font color="Green">E41</font></i></a>, </i>;<br/>
<b>hence </b><a NAME="E7:73"/>
<font color="Maroon">a</font> <a href="hidden.html#R2">in</a>  <a href="polynom1.html#K11">support</a> <span class="p1">(<span class="default"><a href="nat_3.html#NK13" target="_self">pfexp</a> <font color="Maroon">b</font></span>)</span>
 <b>by </b><i><a class="txt" href="nat_3.html#E2:73"><i><font color="Green">E43</font></i></a>, <a class="ref" href="polynom1.html#D7">POLYNOM1:def 7</a></i>;<br/>


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