<?xml version="1.0"?>
<div class="add">

<b>let </b><font color="Maroon" title="c3">ts</font> be    <a href="finseq_1.html#M2" title="FINSEQ_1:mode.2">FinSequence</a> of <font color="Maroon" title="c2">T</font>;<br/>

<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="4_1_1_1"><b>now </b></a><div class="add"><b>let </b><font color="Maroon" title="c4">x</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/><b>assume </b><a NAME="E1:4_1_1_1"/>
<font color="Maroon" title="c4">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="finseq_1.html#K4" title="FINSEQ_1:func.4">dom</a> <font color="Maroon" title="c3">ts</font>
 ;<br/><a NAME="E2:4_1_1_1"/><b>then </b>
<font color="Maroon" title="c3">ts</font> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <font color="Maroon" title="c4">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">T</font>
 <b>by </b><i><a class="ref" href="dtconstr.html#T2" target="_self" title="DTCONSTR:th.2">Th2</a></i>;<br/><b>hence </b><a NAME="E3:4_1_1_1"/>
<font color="Maroon" title="c3">ts</font> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <font color="Maroon" title="c4">x</font> is   <a href="trees_2.html#NM4" title="TREES_2:NM.4">DecoratedTree</a>
 <b>by </b><i><a class="ref" href="trees_3.html#D5" title="TREES_3:def.5">TREES_3:def 5</a></i>;<br/></div><b>end;</b></div>
<b>hence </b><a NAME="E2:4_1_1"/>
<font color="Maroon" title="c3">ts</font> is <a href="trees_3.html#V6" title="TREES_3:attr.6">DTree-yielding</a>
 <b>by </b><i><a class="ref" href="trees_3.html#T26" title="TREES_3:th.26">TREES_3:26</a></i>;<br/>


</div>
