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<b>let </b><font color="Maroon">c<sub>1</sub></font> be   <a href="cat_4.html#NM1">Cartesian_category</a>;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font> be   <a href="cat_1.html#NM1">Object</a> of <font color="Maroon">c<sub>1</sub></font>;<br/>



<a NAME="E1:25"/>
(  <a href="cat_4.html#K1" target="_self">[1]</a> <font color="Maroon">c<sub>1</sub></font> is <a href="cat_1.html#V6">terminal</a> &amp;  <a href="cat_4.html#K6" target="_self">term</a> <font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#R1">=</a>  <a href="cat_3.html#K10">term</a> <font color="Maroon">c<sub>2</sub></font>,<span class="p1">(<span class="default"><a href="cat_4.html#K1" target="_self">[1]</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> )
 
<b>by </b><i><a class="ref" href="cat_4.html#T13" target="_self">Th13</a>, <a class="ref" href="cat_4.html#T16" target="_self">Th16</a></i>;<br/>
<b>hence </b><a NAME="E2:25"/>
(  <a href="cat_1.html#K2">dom</a> <span class="p1">(<span class="default"><a href="cat_4.html#K6" target="_self">term</a> <font color="Maroon">c<sub>2</sub></font></span>)</span> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>2</sub></font> &amp;  <a href="cat_1.html#K3">cod</a> <span class="p1">(<span class="default"><a href="cat_4.html#K6" target="_self">term</a> <font color="Maroon">c<sub>2</sub></font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="cat_4.html#K1" target="_self">[1]</a> <font color="Maroon">c<sub>1</sub></font> )
 <b>by </b><i><a class="ref" href="cat_3.html#T39">CAT_3:39</a></i>;<br/>


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