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<b>let </b><font color="Maroon">C1</font> be  non <a href="struct_0.html#V3">empty</a>  <a href="altcat_1.html#L1">AltGraph</a> ;<br/><b>let </b><font color="Maroon">C2</font> be  non <a href="struct_0.html#V3">empty</a> <a href="altcat_2.html#V1">reflexive</a>  <a href="altcat_1.html#L1">AltGraph</a> , <font color="Maroon">C3</font> be  non <a href="struct_0.html#V3">empty</a> <a href="altcat_2.html#V1">reflexive</a>  <a href="altcat_1.html#L1">AltGraph</a> ;<br/><b>let </b><font color="Maroon">F</font> be  <a href="functor0.html#V8">feasible</a>  <a href="functor0.html#L2">FunctorStr</a> of <font color="Maroon">C1</font>,<font color="Maroon">C2</font>;<br/><b>let </b><font color="Maroon">G</font> be    <a href="functor0.html#L2">FunctorStr</a> of <font color="Maroon">C2</font>,<font color="Maroon">C3</font>;<br/>







<b>assume </b><a NAME="E1:10"/><i><font color="Green">E29</font></i>: 
( <font color="Maroon">F</font> is <a href="functor0.html#V4">one-to-one</a> &amp; <font color="Maroon">G</font> is <a href="functor0.html#V4">one-to-one</a> )
 ;<br/>

<a NAME="E2:10"/><b>then </b><i><font color="Green">E31</font></i>: 
the <a href="functor0.html#U1">ObjectMap</a> of <font color="Maroon">F</font> is <a href="funct_1.html#V2">one-to-one</a>
 
<b>by </b><i><a class="ref" href="functor0.html#D7">FUNCTOR0:def 7</a></i>;<br/>
<a NAME="E3:10"/><i><font color="Green">E34</font></i>: 
the <a href="functor0.html#U1">ObjectMap</a> of <font color="Maroon">G</font> is <a href="funct_1.html#V2">one-to-one</a>
 
<b>by </b><i>, <a class="ref" href="functor0.html#D7">FUNCTOR0:def 7</a></i>;<br/>
<a NAME="E4:10"/>
the <a href="functor0.html#U1">ObjectMap</a> of <span class="p1">(<span class="default"><font color="Maroon">G</font> <a href="functor0.html#K13">*</a> <font color="Maroon">F</font></span>)</span> <a href="funct_2.html#R2">=</a> the <a href="functor0.html#U1">ObjectMap</a> of <font color="Maroon">G</font> <a href="partfun1.html#K1">*</a> the <a href="functor0.html#U1">ObjectMap</a> of <font color="Maroon">F</font>
 
<b>by </b><i><a class="ref" href="functor0.html#D37">FUNCTOR0:def 37</a></i>;<br/>
<b>hence </b><a NAME="E5:10"/>
the <a href="functor0.html#U1">ObjectMap</a> of <span class="p1">(<span class="default"><font color="Maroon">G</font> <a href="functor0.html#K13">*</a> <font color="Maroon">F</font></span>)</span> is <a href="funct_1.html#V2">one-to-one</a>
 <b>by </b><i>, , <a class="ref" href="funct_1.html#T46">FUNCT_1:46</a></i>; <i><font color="Red">:: according to </font></i><a class="ref" href="functor0.html#D7">FUNCTOR0:def 7</a><br/>


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