<?xml version="1.0"?>
<div class="add">

<b>let </b><font color="Maroon">k</font> be    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K5">NAT</a> ;<br/><b>let </b><font color="Maroon">P</font> be   <a href="qc_lang1.html#NM6">QC-pred_symbol</a> of <font color="Maroon">k</font>;<br/>



<b>reconsider </b><font color="Maroon">P'</font> = <font color="Maroon">P</font> as   <a href="qc_lang1.html#NM2">QC-pred_symbol</a> ;<br/>
<a NAME="E2:42"/>
<font color="Maroon">P'</font> <a href="mcart_1.html#K1">`1</a>  <a href="hidden.html#R1">=</a> 7 <a href="nat_1.html#K1">+</a> <span class="p1">(<span class="default"><a href="qc_lang1.html#K6" target="_self">the_arity_of</a> <font color="Maroon">P'</font></span>)</span>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E3:42"/>
( <font color="Maroon">P</font> <a href="mcart_1.html#K1">`1</a>  <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> 0 &amp; <font color="Maroon">P</font> <a href="mcart_1.html#K1">`1</a>  <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> 1 &amp; <font color="Maroon">P</font> <a href="mcart_1.html#K1">`1</a>  <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> 2 &amp; <font color="Maroon">P</font> <a href="mcart_1.html#K1">`1</a>  <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> 3 )
 <b>by </b><i><a class="ref" href="nat_1.html#T29">NAT_1:29</a></i>;<br/>


</div>
