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<b>deffunc </b><font color="Maroon">H<sub>1</sub></font>(  <a href="lang1.html#NM1" title="LANG1:NM.1">Symbol</a> of <font color="Maroon">F<sub>1</sub></font>(),  <a href="finseq_1.html#NM1" title="FINSEQ_1:NM.1">FinSequence</a>,   <a href="finseq_1.html#M2" title="FINSEQ_1:mode.2">FinSequence</a> of <font color="Maroon">F<sub>2</sub></font>()) <b>-&gt; </b>   <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Maroon">F<sub>2</sub></font>() = <font color="Maroon">F<sub>6</sub></font>($1,<span class="p1">(<span class="default">$2 <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 1</span>)</span>,<span class="p1">(<span class="default">$2 <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 2</span>)</span>,<span class="p1">(<span class="default">$3 <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 1</span>)</span>,<span class="p1">(<span class="default">$3 <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 2</span>)</span>);<br/>
<div><i><font color="Green" title="E12">A3</font></i>: <a class="txt" onclick="hs2(this)" href="javascript:()" title="22_1_1"><b>now </b></a><div class="add"><b>thus </b><a NAME="E1:22_1_1"/>
for <font color="Olive" title="b1">t</font> being  <a href="lang1.html#NM1" title="LANG1:NM.1">Symbol</a> of <font color="Maroon">F<sub>1</sub></font>()  st <font color="Olive" title="b1">t</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="dtconstr.html#K6" title="DTCONSTR:func.6">Terminals</a> <font color="Maroon">F<sub>1</sub></font>() holds <br/><font color="Maroon">F<sub>3</sub></font>() <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <span class="p1">(<span class="default"><a href="trees_4.html#K2" title="TREES_4:func.2">root-tree</a> <font color="Olive" title="b1">t</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon">F<sub>5</sub></font>(<font color="Olive" title="b1">t</font>)
 <b>by </b><i><a class="txt" href="bintree1.html#E1:22"><i><font color="Green" title="E10">A1</font></i></a></i>;<br/><b>let </b><font color="Maroon" title="c1">nt</font> be   <a href="lang1.html#NM1" title="LANG1:NM.1">Symbol</a> of <font color="Maroon">F<sub>1</sub></font>();<br/><b>let </b><font color="Maroon" title="c2">ts</font> be    <a href="trees_4.html#M1" title="TREES_4:mode.1">FinSequence</a> of  <a href="dtconstr.html#K4" title="DTCONSTR:func.4">TS</a> <font color="Maroon">F<sub>1</sub></font>();<br/><b>set </b><font color="Maroon" title="c3">rts</font> =  <a href="dtconstr.html#K1" title="DTCONSTR:func.1">roots</a> <font color="Maroon" title="c2">ts</font>;<br/><b>assume </b><a NAME="E2:22_1_1"/><i><font color="Green" title="E13">A4</font></i>: 
<font color="Maroon" title="c1">nt</font> <a href="lang1.html#R1" title="LANG1:pred.1">==&gt;</a>  <a href="dtconstr.html#K1" title="DTCONSTR:func.1">roots</a> <font color="Maroon" title="c2">ts</font>
 ;<br/><b>then consider </b><font color="Maroon" title="c4">tl</font>, <font color="Maroon" title="c5">tr</font> being    <a href="dtconstr.html#M1" title="DTCONSTR:mode.1">Element</a> of  <a href="dtconstr.html#K4" title="DTCONSTR:func.4">TS</a> <font color="Maroon">F<sub>1</sub></font>()<b> such that </b><br/><a NAME="E4:22_1_1"/><i><font color="Green" title="E14">A5</font></i>: 
(  <a href="dtconstr.html#K1" title="DTCONSTR:func.1">roots</a> <font color="Maroon" title="c2">ts</font> <a href="relset_1.html#R2" title="RELSET_1:pred.2">=</a> <span class="p1"><a href="lang1.html#K4" title="LANG1:func.4">&lt;*</a><span class="default"><span class="p2">(<span class="default"><a href="bintree1.html#K1" title="BINTREE1:func.1">root-label</a> <font color="Maroon" title="c4">tl</font></span>)</span>,<span class="p2">(<span class="default"><a href="bintree1.html#K1" title="BINTREE1:func.1">root-label</a> <font color="Maroon" title="c5">tr</font></span>)</span></span><a href="lang1.html#K4" title="LANG1:func.4">*&gt;</a></span> &amp; <font color="Maroon" title="c4">tl</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">ts</font> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 1 &amp; <font color="Maroon" title="c5">tr</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">ts</font> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 2 &amp; <font color="Maroon" title="c1">nt</font> <a href="trees_4.html#K12" title="TREES_4:func.12">-tree</a> <font color="Maroon" title="c2">ts</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c1">nt</font> <a href="trees_4.html#K10" title="TREES_4:func.10">-tree</a> <font color="Maroon" title="c4">tl</font>,<font color="Maroon" title="c5">tr</font> &amp; <font color="Maroon" title="c4">tl</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="relset_1.html#K5" title="RELSET_1:func.5">rng</a> <font color="Maroon" title="c2">ts</font> &amp; <font color="Maroon" title="c5">tr</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="relset_1.html#K5" title="RELSET_1:func.5">rng</a> <font color="Maroon" title="c2">ts</font> )
 <b>by </b><i><a class="ref" href="bintree1.html#T12" target="_self" title="BINTREE1:th.12">Th12</a></i>;<br/><a NAME="E5:22_1_1"/><i><font color="Green" title="E15">A6</font></i>: 
(  <a href="bintree1.html#K1" title="BINTREE1:func.1">root-label</a> <font color="Maroon" title="c4">tl</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">(<span class="default"><a href="dtconstr.html#K1" title="DTCONSTR:func.1">roots</a> <font color="Maroon" title="c2">ts</font></span>)</span> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 1 &amp;  <a href="bintree1.html#K1" title="BINTREE1:func.1">root-label</a> <font color="Maroon" title="c5">tr</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">(<span class="default"><a href="dtconstr.html#K1" title="DTCONSTR:func.1">roots</a> <font color="Maroon" title="c2">ts</font></span>)</span> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 2 )
 <b>by </b><i><a class="txt" href="bintree1.html#E4:22_1_1"><i><font color="Green" title="E14">A5</font></i></a>, <a class="ref" href="finseq_1.html#T61" title="FINSEQ_1:th.61">FINSEQ_1:61</a></i>;<br/><b>set </b><font color="Maroon" title="c6">x</font> = <font color="Maroon">F<sub>3</sub></font>() <a href="lang1.html#K15" title="LANG1:func.15">*</a> <font color="Maroon" title="c2">ts</font>;<br/><b>reconsider </b><font color="Maroon" title="c7">xl</font> = <font color="Maroon">F<sub>3</sub></font>() <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Maroon" title="c4">tl</font> as    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Maroon">F<sub>2</sub></font>() ;<br/><b>reconsider </b><font color="Maroon" title="c8">xr</font> = <font color="Maroon">F<sub>3</sub></font>() <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Maroon" title="c5">tr</font> as    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Maroon">F<sub>2</sub></font>() ;<br/><a NAME="E8:22_1_1"/><i><font color="Green" title="E16">A7</font></i>: 
( <font color="Maroon" title="c1">nt</font> is   <a href="dtconstr.html#NM3" title="DTCONSTR:NM.3">NonTerminal</a> of <font color="Maroon">F<sub>1</sub></font>() &amp;  <a href="finseq_1.html#K4" title="FINSEQ_1:func.4">dom</a> <font color="Maroon" title="c2">ts</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="tarski.html#K2" title="TARSKI:func.2">{</a><span class="default">1,2</span><a href="tarski.html#K2" title="TARSKI:func.2">}</a></span> &amp; 1 <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="c2">ts</font> &amp; 2 <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="c2">ts</font> )
 <b>by </b><i><a class="txt" href="bintree1.html#E2:22_1_1"><i><font color="Green" title="E13">A4</font></i></a>, <a class="ref" href="bintree1.html#T12" target="_self" title="BINTREE1:th.12">Th12</a></i>;<br/><a NAME="E9:22_1_1"/><b>then </b>
( <span class="p1">(<span class="default"><font color="Maroon">F<sub>3</sub></font>() <a href="lang1.html#K15" title="LANG1:func.15">*</a> <font color="Maroon" title="c2">ts</font></span>)</span> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 1 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c7">xl</font> &amp; <span class="p1">(<span class="default"><font color="Maroon">F<sub>3</sub></font>() <a href="lang1.html#K15" title="LANG1:func.15">*</a> <font color="Maroon" title="c2">ts</font></span>)</span> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 2 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c8">xr</font> )
 <b>by </b><i><a class="txt" href="bintree1.html#E4:22_1_1"><i><font color="Green" title="E14">A5</font></i></a>, <a class="ref" href="funct_1.html#T23" title="FUNCT_1:th.23">FUNCT_1:23</a></i>;<br/><b>hence </b><a NAME="E10:22_1_1"/>
<font color="Maroon">F<sub>3</sub></font>() <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <span class="p1">(<span class="default"><font color="Maroon" title="c1">nt</font> <a href="trees_4.html#K12" title="TREES_4:func.12">-tree</a> <font color="Maroon" title="c2">ts</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon">H<sub>1</sub></font>(<font color="Maroon" title="c1">nt</font>, <a href="dtconstr.html#K1" title="DTCONSTR:func.1">roots</a> <font color="Maroon" title="c2">ts</font>,<font color="Maroon">F<sub>3</sub></font>() <a href="lang1.html#K15" title="LANG1:func.15">*</a> <font color="Maroon" title="c2">ts</font>)
 <b>by </b><i><a class="txt" href="bintree1.html#E1:22"><i><font color="Green" title="E10">A1</font></i></a>, <a class="txt" href="bintree1.html#E2:22_1_1"><i><font color="Green" title="E13">A4</font></i></a>, <a class="txt" href="bintree1.html#E4:22_1_1"><i><font color="Green" title="E14">A5</font></i></a>, <a class="txt" href="bintree1.html#E5:22_1_1"><i><font color="Green" title="E15">A6</font></i></a>, <a class="txt" href="bintree1.html#E8:22_1_1"><i><font color="Green" title="E16">A7</font></i></a></i>;<br/></div><b>end;</b></div>
<div><i><font color="Green" title="E13">A8</font></i>: <a class="txt" onclick="hs2(this)" href="javascript:()" title="22_1_2"><b>now </b></a><div class="add"><b>thus </b><a NAME="E1:22_1_2"/>
for <font color="Olive" title="b1">t</font> being  <a href="lang1.html#NM1" title="LANG1:NM.1">Symbol</a> of <font color="Maroon">F<sub>1</sub></font>()  st <font color="Olive" title="b1">t</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="dtconstr.html#K6" title="DTCONSTR:func.6">Terminals</a> <font color="Maroon">F<sub>1</sub></font>() holds <br/><font color="Maroon">F<sub>4</sub></font>() <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <span class="p1">(<span class="default"><a href="trees_4.html#K2" title="TREES_4:func.2">root-tree</a> <font color="Olive" title="b1">t</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon">F<sub>5</sub></font>(<font color="Olive" title="b1">t</font>)
 <b>by </b><i><a class="txt" href="bintree1.html#E2:22"><i><font color="Green" title="E11">A2</font></i></a></i>;<br/><b>let </b><font color="Maroon" title="c1">nt</font> be   <a href="lang1.html#NM1" title="LANG1:NM.1">Symbol</a> of <font color="Maroon">F<sub>1</sub></font>();<br/><b>let </b><font color="Maroon" title="c2">ts</font> be    <a href="trees_4.html#M1" title="TREES_4:mode.1">FinSequence</a> of  <a href="dtconstr.html#K4" title="DTCONSTR:func.4">TS</a> <font color="Maroon">F<sub>1</sub></font>();<br/><b>set </b><font color="Maroon" title="c3">rts</font> =  <a href="dtconstr.html#K1" title="DTCONSTR:func.1">roots</a> <font color="Maroon" title="c2">ts</font>;<br/><b>assume </b><a NAME="E2:22_1_2"/><i><font color="Green" title="E14">A9</font></i>: 
<font color="Maroon" title="c1">nt</font> <a href="lang1.html#R1" title="LANG1:pred.1">==&gt;</a>  <a href="dtconstr.html#K1" title="DTCONSTR:func.1">roots</a> <font color="Maroon" title="c2">ts</font>
 ;<br/><b>then consider </b><font color="Maroon" title="c4">tl</font>, <font color="Maroon" title="c5">tr</font> being    <a href="dtconstr.html#M1" title="DTCONSTR:mode.1">Element</a> of  <a href="dtconstr.html#K4" title="DTCONSTR:func.4">TS</a> <font color="Maroon">F<sub>1</sub></font>()<b> such that </b><br/><a NAME="E4:22_1_2"/><i><font color="Green" title="E15">A10</font></i>: 
(  <a href="dtconstr.html#K1" title="DTCONSTR:func.1">roots</a> <font color="Maroon" title="c2">ts</font> <a href="relset_1.html#R2" title="RELSET_1:pred.2">=</a> <span class="p1"><a href="lang1.html#K4" title="LANG1:func.4">&lt;*</a><span class="default"><span class="p2">(<span class="default"><a href="bintree1.html#K1" title="BINTREE1:func.1">root-label</a> <font color="Maroon" title="c4">tl</font></span>)</span>,<span class="p2">(<span class="default"><a href="bintree1.html#K1" title="BINTREE1:func.1">root-label</a> <font color="Maroon" title="c5">tr</font></span>)</span></span><a href="lang1.html#K4" title="LANG1:func.4">*&gt;</a></span> &amp; <font color="Maroon" title="c4">tl</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">ts</font> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 1 &amp; <font color="Maroon" title="c5">tr</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c2">ts</font> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 2 &amp; <font color="Maroon" title="c1">nt</font> <a href="trees_4.html#K12" title="TREES_4:func.12">-tree</a> <font color="Maroon" title="c2">ts</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c1">nt</font> <a href="trees_4.html#K10" title="TREES_4:func.10">-tree</a> <font color="Maroon" title="c4">tl</font>,<font color="Maroon" title="c5">tr</font> &amp; <font color="Maroon" title="c4">tl</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="relset_1.html#K5" title="RELSET_1:func.5">rng</a> <font color="Maroon" title="c2">ts</font> &amp; <font color="Maroon" title="c5">tr</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="relset_1.html#K5" title="RELSET_1:func.5">rng</a> <font color="Maroon" title="c2">ts</font> )
 <b>by </b><i><a class="ref" href="bintree1.html#T12" target="_self" title="BINTREE1:th.12">Th12</a></i>;<br/><a NAME="E5:22_1_2"/><i><font color="Green" title="E16">A11</font></i>: 
(  <a href="bintree1.html#K1" title="BINTREE1:func.1">root-label</a> <font color="Maroon" title="c4">tl</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">(<span class="default"><a href="dtconstr.html#K1" title="DTCONSTR:func.1">roots</a> <font color="Maroon" title="c2">ts</font></span>)</span> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 1 &amp;  <a href="bintree1.html#K1" title="BINTREE1:func.1">root-label</a> <font color="Maroon" title="c5">tr</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1">(<span class="default"><a href="dtconstr.html#K1" title="DTCONSTR:func.1">roots</a> <font color="Maroon" title="c2">ts</font></span>)</span> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 2 )
 <b>by </b><i><a class="txt" href="bintree1.html#E4:22_1_2"><i><font color="Green" title="E15">A10</font></i></a>, <a class="ref" href="finseq_1.html#T61" title="FINSEQ_1:th.61">FINSEQ_1:61</a></i>;<br/><b>set </b><font color="Maroon" title="c6">x</font> = <font color="Maroon">F<sub>4</sub></font>() <a href="lang1.html#K15" title="LANG1:func.15">*</a> <font color="Maroon" title="c2">ts</font>;<br/><b>reconsider </b><font color="Maroon" title="c7">xl</font> = <font color="Maroon">F<sub>4</sub></font>() <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Maroon" title="c4">tl</font> as    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Maroon">F<sub>2</sub></font>() ;<br/><b>reconsider </b><font color="Maroon" title="c8">xr</font> = <font color="Maroon">F<sub>4</sub></font>() <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Maroon" title="c5">tr</font> as    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Maroon">F<sub>2</sub></font>() ;<br/><a NAME="E8:22_1_2"/><i><font color="Green" title="E17">A12</font></i>: 
( <font color="Maroon" title="c1">nt</font> is   <a href="dtconstr.html#NM3" title="DTCONSTR:NM.3">NonTerminal</a> of <font color="Maroon">F<sub>1</sub></font>() &amp;  <a href="finseq_1.html#K4" title="FINSEQ_1:func.4">dom</a> <font color="Maroon" title="c2">ts</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="tarski.html#K2" title="TARSKI:func.2">{</a><span class="default">1,2</span><a href="tarski.html#K2" title="TARSKI:func.2">}</a></span> &amp; 1 <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="c2">ts</font> &amp; 2 <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="c2">ts</font> )
 <b>by </b><i><a class="txt" href="bintree1.html#E2:22_1_2"><i><font color="Green" title="E14">A9</font></i></a>, <a class="ref" href="bintree1.html#T12" target="_self" title="BINTREE1:th.12">Th12</a></i>;<br/><a NAME="E9:22_1_2"/><b>then </b>
( <span class="p1">(<span class="default"><font color="Maroon">F<sub>4</sub></font>() <a href="lang1.html#K15" title="LANG1:func.15">*</a> <font color="Maroon" title="c2">ts</font></span>)</span> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 1 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c7">xl</font> &amp; <span class="p1">(<span class="default"><font color="Maroon">F<sub>4</sub></font>() <a href="lang1.html#K15" title="LANG1:func.15">*</a> <font color="Maroon" title="c2">ts</font></span>)</span> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> 2 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c8">xr</font> )
 <b>by </b><i><a class="txt" href="bintree1.html#E4:22_1_2"><i><font color="Green" title="E15">A10</font></i></a>, <a class="ref" href="funct_1.html#T23" title="FUNCT_1:th.23">FUNCT_1:23</a></i>;<br/><b>hence </b><a NAME="E10:22_1_2"/>
<font color="Maroon">F<sub>4</sub></font>() <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <span class="p1">(<span class="default"><font color="Maroon" title="c1">nt</font> <a href="trees_4.html#K12" title="TREES_4:func.12">-tree</a> <font color="Maroon" title="c2">ts</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon">H<sub>1</sub></font>(<font color="Maroon" title="c1">nt</font>, <a href="dtconstr.html#K1" title="DTCONSTR:func.1">roots</a> <font color="Maroon" title="c2">ts</font>,<font color="Maroon">F<sub>4</sub></font>() <a href="lang1.html#K15" title="LANG1:func.15">*</a> <font color="Maroon" title="c2">ts</font>)
 <b>by </b><i><a class="txt" href="bintree1.html#E2:22"><i><font color="Green" title="E11">A2</font></i></a>, <a class="txt" href="bintree1.html#E2:22_1_2"><i><font color="Green" title="E14">A9</font></i></a>, <a class="txt" href="bintree1.html#E4:22_1_2"><i><font color="Green" title="E15">A10</font></i></a>, <a class="txt" href="bintree1.html#E5:22_1_2"><i><font color="Green" title="E16">A11</font></i></a>, <a class="txt" href="bintree1.html#E8:22_1_2"><i><font color="Green" title="E17">A12</font></i></a></i>;<br/></div><b>end;</b></div>
<b>thus </b><a NAME="E3:22_1"/>
<font color="Maroon">F<sub>3</sub></font>() <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Maroon">F<sub>4</sub></font>()
 <b>from </b><i><a class="ref" href="dtconstr.html#S9" title="DTCONSTR:sch.9">DTCONSTR:sch 9</a>(<a class="txt" href="bintree1.html#E1:22_1"><i><font color="Green" title="E12">A3</font></i></a>, <a class="txt" href="bintree1.html#E2:22_1"><i><font color="Green" title="E13">A8</font></i></a>);</i><br/>


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