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<b>let </b><font color="Maroon" title="c1">C</font>, <font color="Maroon" title="c2">D</font> be   <a href="cat_1.html#NM4" title="CAT_1:NM.4">Category</a>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> for <font color="Olive" title="b1">F</font> being   <a href="oppcat_1.html#M1" title="OPPCAT_1:mode.1">Contravariant_Functor</a> of <font color="Maroon" title="c1">C</font>,<font color="Maroon" title="c2">D</font> holds  <span class="p1">(<span class="default"><a href="oppcat_1.html#K8" title="OPPCAT_1:func.8">*'</a> <font color="Olive" title="b1">F</font></span>)</span> <a href="oppcat_1.html#K9" title="OPPCAT_1:func.9">*'</a>  is    <a href="oppcat_1.html#M1" title="OPPCAT_1:mode.1">Contravariant_Functor</a> of <font color="Maroon" title="c1">C</font> <a href="oppcat_1.html#K2" title="OPPCAT_1:func.2">opp</a> ,<font color="Maroon" title="c2">D</font> <a href="oppcat_1.html#K2" title="OPPCAT_1:func.2">opp</a> </span><br/><b>let </b><font color="Maroon" title="c3">F</font> be    <a href="oppcat_1.html#M1" title="OPPCAT_1:mode.1">Contravariant_Functor</a> of <font color="Maroon" title="c1">C</font>,<font color="Maroon" title="c2">D</font>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> <span class="p1">(<span class="default"><a href="oppcat_1.html#K8" title="OPPCAT_1:func.8">*'</a> <font color="Maroon" title="c3">F</font></span>)</span> <a href="oppcat_1.html#K9" title="OPPCAT_1:func.9">*'</a>  is    <a href="oppcat_1.html#M1" title="OPPCAT_1:mode.1">Contravariant_Functor</a> of <font color="Maroon" title="c1">C</font> <a href="oppcat_1.html#K2" title="OPPCAT_1:func.2">opp</a> ,<font color="Maroon" title="c2">D</font> <a href="oppcat_1.html#K2" title="OPPCAT_1:func.2">opp</a> </span><br/>





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 <a href="oppcat_1.html#K8" title="OPPCAT_1:func.8">*'</a> <font color="Maroon" title="c3">F</font> is    <a href="cat_1.html#M2" title="CAT_1:mode.2">Functor</a> of <font color="Maroon" title="c1">C</font> <a href="oppcat_1.html#K2" title="OPPCAT_1:func.2">opp</a> ,<font color="Maroon" title="c2">D</font>
 
<b>by </b><i><a class="ref" href="oppcat_1.html#T56" target="_self" title="OPPCAT_1:th.56">Th56</a></i>;<br/>
<b>hence </b><a NAME="E2:84"/>
<span class="p1">(<span class="default"><a href="oppcat_1.html#K8" title="OPPCAT_1:func.8">*'</a> <font color="Maroon" title="c3">F</font></span>)</span> <a href="oppcat_1.html#K9" title="OPPCAT_1:func.9">*'</a>  is    <a href="oppcat_1.html#M1" title="OPPCAT_1:mode.1">Contravariant_Functor</a> of <font color="Maroon" title="c1">C</font> <a href="oppcat_1.html#K2" title="OPPCAT_1:func.2">opp</a> ,<font color="Maroon" title="c2">D</font> <a href="oppcat_1.html#K2" title="OPPCAT_1:func.2">opp</a> 
 <b>by </b><i><a class="ref" href="oppcat_1.html#T59" target="_self" title="OPPCAT_1:th.59">Th59</a></i>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> verum</span><br/>


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