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<b>take </b>
 <a href="altcat_1.html#K8">idm</a> <font color="Maroon">c<sub>2</sub></font>
;<br/>

<b>thus </b><a NAME="E1:35_1_1"/>
(  <a href="altcat_1.html#K8">idm</a> <font color="Maroon">c<sub>2</sub></font> is <a href="altcat_3.html#V4" target="_self">mono</a> &amp;  <a href="altcat_1.html#K8">idm</a> <font color="Maroon">c<sub>2</sub></font> is <a href="altcat_3.html#V5" target="_self">epi</a> &amp;  <a href="altcat_1.html#K8">idm</a> <font color="Maroon">c<sub>2</sub></font> is <a href="altcat_3.html#V1" target="_self">retraction</a> &amp;  <a href="altcat_1.html#K8">idm</a> <font color="Maroon">c<sub>2</sub></font> is <a href="altcat_3.html#V2" target="_self">coretraction</a> )
 <b>by </b><i><a class="txt" href="altcat_3.html#E21"><i><font color="Green">Lemma18</font></i></a>, <a class="ref" href="altcat_3.html#T1" target="_self">Th1</a></i>;<br/>


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