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<b>let </b><font color="Maroon">C</font> be   <a href="cat_1.html#NM4">Category</a>;<br/><b>let </b><font color="Maroon">D</font> be   <a href="cat_1.html#NM4">Category</a>;<br/><b>let </b><font color="Maroon">F</font> be    <a href="oppcat_1.html#M1" target="_self">Contravariant_Functor</a> of <font color="Maroon">C</font>,<font color="Maroon">D</font>;<br/>





<a NAME="E1:84"/>
 <a href="oppcat_1.html#K8" target="_self">*'</a> <font color="Maroon">F</font> is    <a href="cat_1.html#M2">Functor</a> of <font color="Maroon">C</font> <a href="oppcat_1.html#K2" target="_self">opp</a> ,<font color="Maroon">D</font>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:84"/>
<span class="p1">(<span class="default"><a href="oppcat_1.html#K8" target="_self">*'</a> <font color="Maroon">F</font></span>)</span> <a href="oppcat_1.html#K9" target="_self">*'</a>  is    <a href="oppcat_1.html#M1" target="_self">Contravariant_Functor</a> of <font color="Maroon">C</font> <a href="oppcat_1.html#K2" target="_self">opp</a> ,<font color="Maroon">D</font> <a href="oppcat_1.html#K2" target="_self">opp</a> 
 <b>by </b><i><a class="ref" href="oppcat_1.html#D6" target="_self">Def6</a></i>;<br/>


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