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<b>let </b><font color="Maroon">f</font> be    <a href="relset_1.html#M2">Relation</a> of <font color="Maroon">T</font>,<font color="Maroon">D</font>;<br/>

<a NAME="E1:43_2_1"/>
 <a href="relset_1.html#K5">rng</a> <font color="Maroon">f</font> <a href="tarski.html#R1">c=</a> <font color="Maroon">D</font>
 
;<br/>
<b>hence </b><a NAME="E2:43_2_1"/>
<font color="Maroon">f</font> is    <a href="trees_2.html#M3">ParametrizedSubset</a> of <font color="Maroon">D</font>
 <b>by </b><i><a class="ref" href="trees_2.html#D9">TREES_2:def 9</a></i>;<br/>


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