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

<div><b>hereby </b>
<div class="add"><b>assume </b><a NAME="E1:32_1_1_1"/>
<font color="Maroon">x</font> is <a href="xboolean.html#V1">boolean</a>
 ;<br/><a NAME="E2:32_1_1_1"/><b>then </b>
( <font color="Maroon">x</font> <a href="hidden.html#R1">=</a>  <a href="margrel1.html#K7" target="_self">FALSE</a>  or <font color="Maroon">x</font> <a href="hidden.html#R1">=</a>  <a href="margrel1.html#K8" target="_self">TRUE</a>  )
 <b>by </b><i><a class="ref" href="xboolean.html#D3">XBOOLEAN:def 3</a></i>;<br/><b>hence </b><a NAME="E3:32_1_1_1"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a>  <a href="margrel1.html#K6" target="_self">BOOLEAN</a> 
 ;<br/></div>
<b>end;</b></div>

<b>assume </b><a NAME="E2:32_1_1"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a>  <a href="margrel1.html#K6" target="_self">BOOLEAN</a> 
 ;<br/>

<b>hence </b><a NAME="E3:32_1_1"/>
( <font color="Maroon">x</font> <a href="hidden.html#R1">=</a>  <a href="margrel1.html#K7" target="_self">FALSE</a>  or <font color="Maroon">x</font> <a href="hidden.html#R1">=</a>  <a href="margrel1.html#K8" target="_self">TRUE</a>  )
 <b>by </b><i><a class="ref" href="tarski.html#D2">TARSKI:def 2</a></i>; <i><font color="Red">:: according to </font></i><a class="ref" href="xboolean.html#D3">XBOOLEAN:def 3</a><br/>


</div>
