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<b>thus </b><span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="glib_001.html#K9" target="_self">.remove</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>4</sub></font></span>)</span> <a href="glib_001.html#K3" target="_self">.first()</a>  = 
<font color="Maroon">c<sub>2</sub></font> <a href="glib_001.html#K3" target="_self">.first()</a> 
<b>by </b><i><a class="txt" href="glib_001.html#E74"><i><font color="Green">Lemma66</font></i></a></i>
<br/>.= 
<font color="Maroon">c<sub>2</sub></font> <a href="glib_001.html#K4" target="_self">.last()</a> 
<b>by </b><i><a class="ref" href="glib_001.html#D24" target="_self">Def24</a></i>
<br/>.= 
<span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="glib_001.html#K9" target="_self">.remove</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>4</sub></font></span>)</span> <a href="glib_001.html#K4" target="_self">.last()</a> 
<b>by </b><i><a class="txt" href="glib_001.html#E74"><i><font color="Green">Lemma66</font></i></a></i>
; <i><font color="Red">:: according to </font></i><a class="ref" href="glib_001.html#D24" target="_self">GLIB_001:def 24</a><br/>


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