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<b>let </b><font color="Maroon">x</font> be    <a href="hidden.html#M1">set</a> ;<br/>

<b>assume </b><a NAME="E1:128_1_1"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a>  <a href="comput_1.html#K11" target="_self">PrimRec</a> 
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="comput_1.html#D19" target="_self">COMPUT_1:def 19</a><br/>

<a NAME="E2:128_1_1"/><b>then </b>
<font color="Maroon">x</font> is    <a href="comput_1.html#M1" target="_self">Element</a> of  <a href="comput_1.html#K11" target="_self">PrimRec</a> 
 
;<br/>
<b>hence </b><a NAME="E3:128_1_1"/>
( <font color="Maroon">x</font> is <a href="relat_1.html#V1">Relation-like</a> &amp; <font color="Maroon">x</font> is <a href="funct_1.html#V1">Function-like</a> )
 ;<br/>


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