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

<span class="kw">set </span><font color="Maroon" title="c10">FX</font> =  <a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font>;<br/>
<span class="kw">set </span><font color="Maroon" title="c11">CX</font> =  <a href="ordinal1.html#K1" title="ORDINAL1:func.1">succ</a> <font color="Maroon" title="c1">X</font>;<br/>
<span class="kw">set </span><font color="Maroon" title="c12">FY</font> =  <a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font>;<br/>
<span class="kw">set </span><font color="Maroon" title="c13">CY</font> =  <a href="ordinal1.html#K1" title="ORDINAL1:func.1">succ</a> <font color="Maroon" title="c2">Y</font>;<br/>
<span class="kw">reconsider </span><font color="Maroon" title="c14">h1</font> = <font color="Maroon" title="c8">h1</font>, <font color="Maroon" title="c15">h2</font> = <font color="Maroon" title="c9">h2</font> as   <a href="poset_1.html#V2" title="POSET_1:attr.2">continuous</a>  <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>,<span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font></span>)</span> <span class="kw">by</span> <span class="lab"><a class="txt" href="#E1:53"><span class="lab"><font color="Green" title="E30">A00</font></span></a></span>;<br/>
<a NAME="E2:53_1_2"/>
 for <font color="Olive" title="b1">g1</font>, <font color="Olive" title="b2">g2</font> being   <a href="poset_1.html#V2" title="POSET_1:attr.2">continuous</a>  <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>,<span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font></span>)</span>  st (  for <font color="Olive" title="b3">x</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span><br/>  for <font color="Olive" title="b4">f1</font>, <font color="Olive" title="b5">f2</font> being   <a href="poset_1.html#V2" title="POSET_1:attr.2">continuous</a>  <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>,<span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font></span>)</span>  st <font color="Maroon" title="c14">h1</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b4">f1</font> &amp; <font color="Maroon" title="c15">h2</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b5">f2</font> holds <br/><font color="Olive" title="b1">g1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b3">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="poset_2.html#K10" title="POSET_2:func.10">BaseFunc02</a> (<font color="Olive" title="b3">x</font>,<span class="p1">(<span class="default"><font color="Olive" title="b4">f1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c6">E1</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b3">x</font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><font color="Olive" title="b5">f2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c7">E2</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b3">x</font></span>)</span></span>)</span>,<font color="Maroon" title="c4">I</font>,<font color="Maroon" title="c5">J</font>,<font color="Maroon" title="c3">D</font>) ) &amp; (  for <font color="Olive" title="b3">x</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span><br/>  for <font color="Olive" title="b4">f1</font>, <font color="Olive" title="b5">f2</font> being   <a href="poset_1.html#V2" title="POSET_1:attr.2">continuous</a>  <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>,<span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font></span>)</span>  st <font color="Maroon" title="c14">h1</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b4">f1</font> &amp; <font color="Maroon" title="c15">h2</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b5">f2</font> holds <br/><font color="Olive" title="b2">g2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b3">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="poset_2.html#K10" title="POSET_2:func.10">BaseFunc02</a> (<font color="Olive" title="b3">x</font>,<span class="p1">(<span class="default"><font color="Olive" title="b4">f1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c6">E1</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b3">x</font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><font color="Olive" title="b5">f2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c7">E2</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b3">x</font></span>)</span></span>)</span>,<font color="Maroon" title="c4">I</font>,<font color="Maroon" title="c5">J</font>,<font color="Maroon" title="c3">D</font>) ) holds <br/><font color="Olive" title="b1">g1</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b2">g2</font>
 
<div><a class="txt" onmouseover="tooltip.show('hs2',this)" onmouseout="tooltip.hide()" onclick="hs2(this)" href="javascript:()" title="53_1_2_1"><span class="kw">proof </span></a><div class="add">

<span class="kw">let </span><font color="Maroon" title="c16">g1</font>, <font color="Maroon" title="c17">g2</font> be   <a href="poset_1.html#V2" title="POSET_1:attr.2">continuous</a>  <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>,<span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font></span>)</span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> ( (  for <font color="Olive" title="b1">x</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span><br/>  for <font color="Olive" title="b2">f1</font>, <font color="Olive" title="b3">f2</font> being   <a href="poset_1.html#V2" title="POSET_1:attr.2">continuous</a>  <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>,<span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font></span>)</span>  st <font color="Maroon" title="c14">h1</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b2">f1</font> &amp; <font color="Maroon" title="c15">h2</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b3">f2</font> holds <br/><font color="Maroon" title="c16">g1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="poset_2.html#K10" title="POSET_2:func.10">BaseFunc02</a> (<font color="Olive" title="b1">x</font>,<span class="p1">(<span class="default"><font color="Olive" title="b2">f1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c6">E1</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><font color="Olive" title="b3">f2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c7">E2</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font></span>)</span></span>)</span>,<font color="Maroon" title="c4">I</font>,<font color="Maroon" title="c5">J</font>,<font color="Maroon" title="c3">D</font>) ) &amp; (  for <font color="Olive" title="b1">x</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span><br/>  for <font color="Olive" title="b2">f1</font>, <font color="Olive" title="b3">f2</font> being   <a href="poset_1.html#V2" title="POSET_1:attr.2">continuous</a>  <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>,<span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font></span>)</span>  st <font color="Maroon" title="c14">h1</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b2">f1</font> &amp; <font color="Maroon" title="c15">h2</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b3">f2</font> holds <br/><font color="Maroon" title="c17">g2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="poset_2.html#K10" title="POSET_2:func.10">BaseFunc02</a> (<font color="Olive" title="b1">x</font>,<span class="p1">(<span class="default"><font color="Olive" title="b2">f1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c6">E1</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><font color="Olive" title="b3">f2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c7">E2</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font></span>)</span></span>)</span>,<font color="Maroon" title="c4">I</font>,<font color="Maroon" title="c5">J</font>,<font color="Maroon" title="c3">D</font>) ) implies <font color="Maroon" title="c16">g1</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Maroon" title="c17">g2</font> )</span><br/>

<span class="kw">assume </span><a NAME="E1:53_1_2_1"/><span class="lab"><font color="Green" title="E31">B1</font></span>: 
( (  for <font color="Olive" title="b1">x</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span><br/>  for <font color="Olive" title="b2">f1</font>, <font color="Olive" title="b3">f2</font> being   <a href="poset_1.html#V2" title="POSET_1:attr.2">continuous</a>  <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>,<span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font></span>)</span>  st <font color="Maroon" title="c14">h1</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b2">f1</font> &amp; <font color="Maroon" title="c15">h2</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b3">f2</font> holds <br/><font color="Maroon" title="c16">g1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="poset_2.html#K10" title="POSET_2:func.10">BaseFunc02</a> (<font color="Olive" title="b1">x</font>,<span class="p1">(<span class="default"><font color="Olive" title="b2">f1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c6">E1</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><font color="Olive" title="b3">f2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c7">E2</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font></span>)</span></span>)</span>,<font color="Maroon" title="c4">I</font>,<font color="Maroon" title="c5">J</font>,<font color="Maroon" title="c3">D</font>) ) &amp; (  for <font color="Olive" title="b1">x</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span><br/>  for <font color="Olive" title="b2">f1</font>, <font color="Olive" title="b3">f2</font> being   <a href="poset_1.html#V2" title="POSET_1:attr.2">continuous</a>  <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>,<span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font></span>)</span>  st <font color="Maroon" title="c14">h1</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b2">f1</font> &amp; <font color="Maroon" title="c15">h2</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Olive" title="b3">f2</font> holds <br/><font color="Maroon" title="c17">g2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="poset_2.html#K10" title="POSET_2:func.10">BaseFunc02</a> (<font color="Olive" title="b1">x</font>,<span class="p1">(<span class="default"><font color="Olive" title="b2">f1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c6">E1</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><font color="Olive" title="b3">f2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c7">E2</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font></span>)</span></span>)</span>,<font color="Maroon" title="c4">I</font>,<font color="Maroon" title="c5">J</font>,<font color="Maroon" title="c3">D</font>) ) )
 ; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> <font color="Maroon" title="c16">g1</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Maroon" title="c17">g2</font></span><br/>

<a NAME="E2:53_1_2_1"/>
 for <font color="Olive" title="b1">x</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span> holds  <font color="Maroon" title="c16">g1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c17">g2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b1">x</font>
 
<div><a class="txt" onmouseover="tooltip.show('hs2',this)" onmouseout="tooltip.hide()" onclick="hs2(this)" href="javascript:()" title="53_1_2_1_1"><span class="kw">proof </span></a><div class="add">

<span class="kw">let </span><font color="Maroon" title="c18">x</font> be   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> <font color="Maroon" title="c16">g1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Maroon" title="c18">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c17">g2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Maroon" title="c18">x</font></span><br/>

<font color="Maroon" title="c16">g1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Maroon" title="c18">x</font> = 
 <a href="poset_2.html#K10" title="POSET_2:func.10">BaseFunc02</a> (<font color="Maroon" title="c18">x</font>,<span class="p1">(<span class="default"><font color="Maroon" title="c14">h1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c6">E1</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Maroon" title="c18">x</font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><font color="Maroon" title="c15">h2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c7">E2</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Maroon" title="c18">x</font></span>)</span></span>)</span>,<font color="Maroon" title="c4">I</font>,<font color="Maroon" title="c5">J</font>,<font color="Maroon" title="c3">D</font>)
<span class="kw">by</span> <span class="lab"><a class="txt" href="#E1:53_1_2_1"><span class="lab"><font color="Green" title="E31">B1</font></span></a></span>
<br/>.= 
<font color="Maroon" title="c17">g2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Maroon" title="c18">x</font>
<span class="kw">by</span> <span class="lab"><a class="txt" href="#E1:53_1_2_1"><span class="lab"><font color="Green" title="E31">B1</font></span></a></span>
;<br/>
<span class="kw">hence </span><a NAME="E2:53_1_2_1_1"/>
<font color="Maroon" title="c16">g1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Maroon" title="c18">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c17">g2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Maroon" title="c18">x</font>
 ; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


</div><span class="kw">end;</span></div>
<span class="kw">hence </span><a NAME="E3:53_1_2_1"/>
<font color="Maroon" title="c16">g1</font> <a href="funct_2.html#R2" title="FUNCT_2:pred.2">=</a> <font color="Maroon" title="c17">g2</font>
 ; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


</div><span class="kw">end;</span></div>
<span class="kw">hence </span><a NAME="E3:53_1_2"/>
 for <font color="Olive">b<sub>1</sub></font>, <font color="Olive">b<sub>2</sub></font> being   <a href="poset_1.html#V2" title="POSET_1:attr.2">continuous</a>  <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>,<span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font></span>)</span>  st (  for <font color="Olive" title="b3">x</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span><br/>  for <font color="Olive" title="b4">f1</font>, <font color="Olive" title="b5">f2</font> being   <a href="poset_1.html#V2" title="POSET_1:attr.2">continuous</a>  <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>,<span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font></span>)</span>  st <font color="Maroon" title="c8">h1</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b4">f1</font> &amp; <font color="Maroon" title="c9">h2</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b5">f2</font> holds <br/><font color="Olive">b<sub>1</sub></font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b3">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="poset_2.html#K10" title="POSET_2:func.10">BaseFunc02</a> (<font color="Olive" title="b3">x</font>,<span class="p1">(<span class="default"><font color="Olive" title="b4">f1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c6">E1</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b3">x</font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><font color="Olive" title="b5">f2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c7">E2</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b3">x</font></span>)</span></span>)</span>,<font color="Maroon" title="c4">I</font>,<font color="Maroon" title="c5">J</font>,<font color="Maroon" title="c3">D</font>) ) &amp; (  for <font color="Olive" title="b3">x</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span><br/>  for <font color="Olive" title="b4">f1</font>, <font color="Olive" title="b5">f2</font> being   <a href="poset_1.html#V2" title="POSET_1:attr.2">continuous</a>  <a href="struct_0.html#NM6" title="STRUCT_0:NM.6">Function</a> of <span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c1">X</font></span>)</span>,<span class="p1">(<span class="default"><a href="poset_2.html#K4" title="POSET_2:func.4">FlatPoset</a> <font color="Maroon" title="c2">Y</font></span>)</span>  st <font color="Maroon" title="c8">h1</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b4">f1</font> &amp; <font color="Maroon" title="c9">h2</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b5">f2</font> holds <br/><font color="Olive">b<sub>2</sub></font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b3">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="poset_2.html#K10" title="POSET_2:func.10">BaseFunc02</a> (<font color="Olive" title="b3">x</font>,<span class="p1">(<span class="default"><font color="Olive" title="b4">f1</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c6">E1</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b3">x</font></span>)</span></span>)</span>,<span class="p1">(<span class="default"><font color="Olive" title="b5">f2</font> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="poset_2.html#K6" title="POSET_2:func.6">Flatten</a> <font color="Maroon" title="c7">E2</font></span>)</span> <a href="funct_2.html#K3" title="FUNCT_2:func.3">.</a> <font color="Olive" title="b3">x</font></span>)</span></span>)</span>,<font color="Maroon" title="c4">I</font>,<font color="Maroon" title="c5">J</font>,<font color="Maroon" title="c3">D</font>) ) holds <br/><font color="Olive">b<sub>1</sub></font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive">b<sub>2</sub></font>
 ; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


</div>
