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<b>consider </b><font color="Maroon" title="c1">W</font> being   <a href="trees_1.html#NM1" title="TREES_1:NM.1">Tree</a>;<br/>
<b>take </b><font color="Maroon" title="c2">f</font> = <font color="Maroon" title="c1">W</font> <a href="funcop_1.html#K8" title="FUNCOP_1:func.8">--&gt;</a> <a href="numbers.html#K6" title="NUMBERS:func.6">0</a> ;<br/>

<b>thus </b><a NAME="E2:49_1_1"/>
 <a href="relset_1.html#K4" title="RELSET_1:func.4">dom</a> <font color="Maroon" title="c2">f</font> is   <a href="trees_1.html#NM1" title="TREES_1:NM.1">Tree</a>
 <b>by </b><i><a class="ref" href="funcop_1.html#T19" title="FUNCOP_1:th.19">FUNCOP_1:19</a></i>; <i><font color="Red">:: according to </font></i><a class="ref" href="trees_2.html#D8" target="_self" title="TREES_2:def.8">TREES_2:def 8</a><br/>


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