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<b>let </b><font color="Maroon">C</font> be   <a href="cat_4.html#NM2">Cocartesian_category</a>;<br/><b>let </b><font color="Maroon">a</font> be   <a href="cat_1.html#NM1">Object</a> of <font color="Maroon">C</font>;<br/>



<a NAME="E1:82"/>
 <a href="cat_4.html#K19" target="_self">[0]</a> <font color="Maroon">C</font> is <a href="cat_1.html#V7">initial</a>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:82"/>
 <a href="cat_4.html#K24" target="_self">init</a> <font color="Maroon">a</font> <a href="hidden.html#R1">=</a>  <a href="cat_3.html#K11">init</a> <span class="p1">(<span class="default"><a href="cat_4.html#K19" target="_self">[0]</a> <font color="Maroon">C</font></span>)</span>,<font color="Maroon">a</font>
 <b>by </b><i><a class="ref" href="cat_3.html#T44">CAT_3:44</a></i>;<br/>


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