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

<b>let </b><font color="Maroon" title="c1">H</font> be    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="qc_lang1.html#K8" title="QC_LANG1:func.8">QC-WFF</a> ;<br/>

<b>given </b><font color="Maroon" title="c2">F</font>, <font color="Maroon" title="c3">G</font> being    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="qc_lang1.html#K8" title="QC_LANG1:func.8">QC-WFF</a> <b> such that </b><a NAME="E1:34"/><i><font color="Green" title="E20">A1</font></i>: 
<font color="Maroon" title="c1">H</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">F</font> <a href="qc_lang2.html#K3" title="QC_LANG2:func.3">'or'</a> <font color="Maroon" title="c3">G</font>
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="qc_lang2.html#D10" target="_self" title="QC_LANG2:def.10">QC_LANG2:def 10</a><br/>

<a NAME="E2:34"/>
(  <a href="qc_lang2.html#K10" title="QC_LANG2:func.10">the_left_disjunct_of</a> <font color="Maroon" title="c1">H</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">F</font> &amp;  <a href="qc_lang2.html#K11" title="QC_LANG2:func.11">the_right_disjunct_of</a> <font color="Maroon" title="c1">H</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c3">G</font> )
 
<b>by </b><i><a class="txt" href="qc_lang2.html#E1:34"><i><font color="Green" title="E20">A1</font></i></a>, <a class="ref" href="qc_lang2.html#T45" target="_self" title="QC_LANG2:th.45">Th45</a></i>;<br/>
<b>hence </b><a NAME="E3:34"/>
<font color="Maroon" title="c1">H</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">(<span class="default"><a href="qc_lang2.html#K10" title="QC_LANG2:func.10">the_left_disjunct_of</a> <font color="Maroon" title="c1">H</font></span>)</span> <a href="qc_lang2.html#K3" title="QC_LANG2:func.3">'or'</a> <span class="p1">(<span class="default"><a href="qc_lang2.html#K11" title="QC_LANG2:func.11">the_right_disjunct_of</a> <font color="Maroon" title="c1">H</font></span>)</span>
 <b>by </b><i><a class="txt" href="qc_lang2.html#E1:34"><i><font color="Green" title="E20">A1</font></i></a></i>;<br/>


</div>
