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

<a NAME="E1:22_1_1"/>
<font color="Maroon">G</font> <a href="functor0.html#K13">*</a> <font color="Maroon">F</font> is    <a href="functor0.html#M2">Functor</a> of <font color="Maroon">A</font>,<font color="Maroon">C</font>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="22_1_1_1"><b>proof </b></a><div class="add">

<b>thus </b><a NAME="E1:22_1_1_1"/>
( <font color="Maroon">G</font> <a href="functor0.html#K13">*</a> <font color="Maroon">F</font> is <a href="functor0.html#V8">feasible</a> &amp; <font color="Maroon">G</font> <a href="functor0.html#K13">*</a> <font color="Maroon">F</font> is <a href="functor0.html#V12">id-preserving</a> )
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="functor0.html#D26">FUNCTOR0:def 26</a><br/>

<b>thus </b><a NAME="E2:22_1_1_1"/>
( ( <font color="Maroon">G</font> <a href="functor0.html#K13">*</a> <font color="Maroon">F</font> is <a href="functor0.html#V10">Covariant</a> &amp; <font color="Maroon">G</font> <a href="functor0.html#K13">*</a> <font color="Maroon">F</font> is <a href="functor0.html#V13">comp-preserving</a> ) or ( <font color="Maroon">G</font> <a href="functor0.html#K13">*</a> <font color="Maroon">F</font> is <a href="functor0.html#V11">Contravariant</a> &amp; <font color="Maroon">G</font> <a href="functor0.html#K13">*</a> <font color="Maroon">F</font> is <a href="functor0.html#V14">comp-reversing</a> ) )
 ;<br/>


</div><b>end;</b></div>
<b>then reconsider </b><font color="Maroon">GF</font> = <font color="Maroon">G</font> <a href="functor0.html#K13">*</a> <font color="Maroon">F</font> as    <a href="functor0.html#M2">Functor</a> of <font color="Maroon">A</font>,<font color="Maroon">C</font> ;<br/>
<a NAME="E3:22_1_1"/>
<font color="Maroon">GF</font> is <a href="functor0.html#V16">contravariant</a>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="22_1_1_2"><b>proof </b></a><div class="add">

<b>thus </b><a NAME="E1:22_1_1_2"/>
( <font color="Maroon">GF</font> is <a href="functor0.html#V11">Contravariant</a> &amp; <font color="Maroon">GF</font> is <a href="functor0.html#V14">comp-reversing</a> )
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="functor0.html#D28">FUNCTOR0:def 28</a><br/>


</div><b>end;</b></div>
<b>hence </b><a NAME="E4:22_1_1"/>
<font color="Maroon">G</font> <a href="functor0.html#K13">*</a> <font color="Maroon">F</font> is  <a href="functor0.html#V9">strict</a> <a href="functor0.html#V16">contravariant</a>  <a href="functor0.html#M2">Functor</a> of <font color="Maroon">A</font>,<font color="Maroon">C</font>
 ;<br/>


</div>
