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<a NAME="E1:18_2_1"/>
<font color="Maroon">c<sub>1</sub></font> <a href="glib_000.html#K13">.set</a> <a href="glib_003.html#K3" target="_self">ELabelSelector</a> ,<font color="Maroon">c<sub>2</sub></font> <a href="glib_000.html#R5">==</a> <font color="Maroon">c<sub>1</sub></font>
 
<b>by </b><i><a class="txt" href="glib_003.html#E14"><i><font color="Green">Lemma7</font></i></a></i>;<br/>
<b>hence </b><a NAME="E2:18_2_1"/>
<font color="Maroon">c<sub>1</sub></font> <a href="glib_000.html#K13">.set</a> <a href="glib_003.html#K3" target="_self">ELabelSelector</a> ,<font color="Maroon">c<sub>2</sub></font> is <a href="glib_000.html#V4">trivial</a>
 <b>by </b><i><a class="ref" href="glib_000.html#T92">GLIB_000:92</a></i>;<br/>


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