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

<b>let </b><font color="Maroon" title="c3">A</font> be   <a href="altcat_1.html#NM4" title="ALTCAT_1:NM.4">category</a>;<br/>

<b>take </b>
 <a href="functor0.html#K12" title="FUNCTOR0:func.12">id</a> <font color="Maroon" title="c3">A</font>
;<br/>

<b>take </b>
 <a href="functor0.html#K12" title="FUNCTOR0:func.12">id</a> <font color="Maroon" title="c3">A</font>
;<br/>

<b>thus </b><a NAME="E1:18_1_1"/>
( <span class="p1">(<span class="default"><a href="functor0.html#K12" title="FUNCTOR0:func.12">id</a> <font color="Maroon" title="c3">A</font></span>)</span> <a href="functor3.html#K1" title="FUNCTOR3:func.1">*</a> <span class="p1">(<span class="default"><a href="functor0.html#K12" title="FUNCTOR0:func.12">id</a> <font color="Maroon" title="c3">A</font></span>)</span>, <a href="functor0.html#K12" title="FUNCTOR0:func.12">id</a> <font color="Maroon" title="c3">A</font> <a href="functor3.html#R1" title="FUNCTOR3:pred.1">are_naturally_equivalent</a>  &amp; <span class="p1">(<span class="default"><a href="functor0.html#K12" title="FUNCTOR0:func.12">id</a> <font color="Maroon" title="c3">A</font></span>)</span> <a href="functor3.html#K1" title="FUNCTOR3:func.1">*</a> <span class="p1">(<span class="default"><a href="functor0.html#K12" title="FUNCTOR0:func.12">id</a> <font color="Maroon" title="c3">A</font></span>)</span>, <a href="functor0.html#K12" title="FUNCTOR0:func.12">id</a> <font color="Maroon" title="c3">A</font> <a href="functor3.html#R1" title="FUNCTOR3:pred.1">are_naturally_equivalent</a>  )
 <b>by </b><i><a class="ref" href="functor3.html#T4" title="FUNCTOR3:th.4">FUNCTOR3:4</a></i>;<br/>


</div>
