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<a NAME="E1:40_1_1"/>
<font color="Maroon">nt</font> <a href="lang1.html#R1">==&gt;</a>  <a href="dtconstr.html#K1" target="_self">roots</a> <font color="Maroon">p</font>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:40_1_1"/>
<font color="Maroon">nt</font> <a href="trees_4.html#K4">-tree</a> <font color="Maroon">p</font> is    <a href="dtconstr.html#M1" target="_self">Element</a> of  <a href="dtconstr.html#K4" target="_self">TS</a> <font color="Maroon">G</font>
 <b>by </b><i/>;<br/>


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