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<b>let </b><font color="Maroon">F1</font> be   <a href="funct_2.html#NM1">Function</a> of <font color="Maroon">V</font>, <a href="grcat_1.html#K20" target="_self">Morphs</a> <font color="Maroon">V</font>, <font color="Maroon">F2</font> be   <a href="funct_2.html#NM1">Function</a> of <font color="Maroon">V</font>, <a href="grcat_1.html#K20" target="_self">Morphs</a> <font color="Maroon">V</font>;<br/>

<b>assume </b><b>that </b><br/><a NAME="E1:88_3_2"/><i><font color="Green">E96</font></i>: 
for <font color="Olive">G</font> being   <a href="grcat_1.html#M2" target="_self">Element</a> of <font color="Maroon">V</font> holds  <font color="Maroon">F1</font> <a href="funct_2.html#K3">.</a> <font color="Olive">G</font> <a href="hidden.html#R1">=</a>  <a href="grcat_1.html#K23" target="_self">ID</a> <font color="Olive">G</font>
 <b>and </b><br/><a NAME="E2:88_3_2"/><i><font color="Green">E97</font></i>: 
for <font color="Olive">G</font> being   <a href="grcat_1.html#M2" target="_self">Element</a> of <font color="Maroon">V</font> holds  <font color="Maroon">F2</font> <a href="funct_2.html#K3">.</a> <font color="Olive">G</font> <a href="hidden.html#R1">=</a>  <a href="grcat_1.html#K23" target="_self">ID</a> <font color="Olive">G</font>
 ;<br/>

<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="88_3_2_1"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">G</font> be    <a href="grcat_1.html#M2" target="_self">Element</a> of <font color="Maroon">V</font>;<br/><a NAME="E1:88_3_2_1"/>
<font color="Maroon">F1</font> <a href="funct_2.html#K3">.</a> <font color="Maroon">G</font> <a href="hidden.html#R1">=</a>  <a href="grcat_1.html#K23" target="_self">ID</a> <font color="Maroon">G</font>
 <b>by </b><i><a class="ref" href="grcat_1.html#T6" target="_self">Th6</a></i>;<br/><b>hence </b><a NAME="E2:88_3_2_1"/>
<font color="Maroon">F1</font> <a href="funct_2.html#K3">.</a> <font color="Maroon">G</font> <a href="hidden.html#R1">=</a> <font color="Maroon">F2</font> <a href="funct_2.html#K3">.</a> <font color="Maroon">G</font>
 <b>by </b><i><a class="ref" href="grcat_1.html#T7" target="_self">Th7</a></i>;<br/></div><b>end;</b></div>
<b>hence </b><a NAME="E4:88_3_2"/>
<font color="Maroon">F1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">F2</font>
 <b>by </b><i><a class="ref" href="funct_2.html#T113">FUNCT_2:113</a></i>;<br/>


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