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<b>let </b><font color="Maroon" title="c3">f</font> be    <a href="relset_1.html#M2" title="RELSET_1:mode.2">Relation</a> of <font color="Maroon" title="c1">T</font>,<font color="Maroon" title="c2">D</font>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> <font color="Maroon" title="c3">f</font> is    <a href="trees_2.html#M3" title="TREES_2:mode.3">ParametrizedSubset</a> of <font color="Maroon" title="c2">D</font></span><br/>

<a NAME="E1:43_2_1"/>
 <a href="relset_1.html#K5" title="RELSET_1:func.5">rng</a> <font color="Maroon" title="c3">f</font> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a> <font color="Maroon" title="c2">D</font>
 
;<br/>
<b>hence </b><a NAME="E2:43_2_1"/>
<font color="Maroon" title="c3">f</font> is    <a href="trees_2.html#M3" title="TREES_2:mode.3">ParametrizedSubset</a> of <font color="Maroon" title="c2">D</font>
 <b>by </b><i><a class="ref" href="trees_2.html#D9" title="TREES_2:def.9">TREES_2:def 9</a></i>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> verum</span><br/>


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