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

<b>consider </b><font color="Maroon">j</font> being    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">J</font>;<br/>
<a NAME="E2:33_1_1"/><i><font color="Green">E23</font></i>: 
 <a href="relat_1.html#K1">dom</a> <font color="Maroon">A</font> <a href="hidden.html#R1">=</a> <font color="Maroon">J</font>
 
<b>by </b><i><a class="ref" href="pboole.html#D3">PBOOLE:def 3</a></i>;<br/>
<b>reconsider </b><font color="Maroon">U0</font> = <font color="Maroon">A</font> <a href="pralg_1.html#K11" target="_self">.</a> <font color="Maroon">j</font> as   <a href="unialg_1.html#NM2">Universal_Algebra</a> ;<br/>
<b>take </b>
 <a href="unialg_1.html#K4">signature</a> <font color="Maroon">U0</font>
;<br/>

<b>let </b><font color="Maroon">j1</font> be    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">J</font>;<br/>

<b>thus </b><a NAME="E4:33_1_1"/>
 <a href="unialg_1.html#K4">signature</a> <font color="Maroon">U0</font> <a href="hidden.html#R1">=</a>  <a href="unialg_1.html#K4">signature</a> <span class="p1">(<span class="default"><font color="Maroon">A</font> <a href="pralg_1.html#K11" target="_self">.</a> <font color="Maroon">j1</font></span>)</span>
 <b>by </b><i><a class="ref" href="pralg_1.html#T1" target="_self">Th1</a>, </i>;<br/>


</div>
