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<b>let </b><font color="Maroon" title="c1">G</font> be  <a href="group_1.html#V1" title="GROUP_1:attr.1">strict</a> <a href="group_1.html#NM1" title="GROUP_1:NM.1">Group</a>;<br/><b>let </b><font color="Maroon" title="c2">f</font>, <font color="Maroon" title="c3">g</font> be    <a href="fraenkel.html#M2" title="FRAENKEL:mode.2">Element</a> of  <a href="autgroup.html#K4" title="AUTGROUP:func.4">InnAut</a> <font color="Maroon" title="c1">G</font>;<br/>



<a NAME="E1:19"/>
( <font color="Maroon" title="c2">f</font> is    <a href="fraenkel.html#M2" title="FRAENKEL:mode.2">Element</a> of  <a href="autgroup.html#K1" title="AUTGROUP:func.1">Aut</a> <font color="Maroon" title="c1">G</font> &amp; <font color="Maroon" title="c3">g</font> is    <a href="fraenkel.html#M2" title="FRAENKEL:mode.2">Element</a> of  <a href="autgroup.html#K1" title="AUTGROUP:func.1">Aut</a> <font color="Maroon" title="c1">G</font> )
 
<b>by </b><i><a class="ref" href="autgroup.html#T13" target="_self" title="AUTGROUP:th.13">Th13</a></i>;<br/>
<b>then consider </b><font color="Maroon" title="c4">f1</font>, <font color="Maroon" title="c5">g1</font> being    <a href="fraenkel.html#M2" title="FRAENKEL:mode.2">Element</a> of  <a href="autgroup.html#K1" title="AUTGROUP:func.1">Aut</a> <font color="Maroon" title="c1">G</font><b> such that </b><br/><a NAME="E3:19"/><i><font color="Green" title="E18">A1</font></i>: 
( <font color="Maroon" title="c4">f1</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Maroon" title="c2">f</font> &amp; <font color="Maroon" title="c5">g1</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Maroon" title="c3">g</font> )
 ;<br/>
<b>thus </b><a NAME="E4:19"/>
<span class="p1">(<span class="default"><a href="autgroup.html#K2" title="AUTGROUP:func.2">AutComp</a> <font color="Maroon" title="c1">G</font></span>)</span> <a href="binop_1.html#K1" title="BINOP_1:func.1">.</a> <font color="Maroon" title="c2">f</font>,<font color="Maroon" title="c3">g</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">f</font> <a href="partfun1.html#K1" title="PARTFUN1:func.1">*</a> <font color="Maroon" title="c3">g</font>
 <b>by </b><i><a class="txt" href="autgroup.html#E3:19"><i><font color="Green" title="E18">A1</font></i></a>, <a class="ref" href="autgroup.html#D2" target="_self" title="AUTGROUP:def.2">Def2</a></i>;<br/>


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