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<span class="kw">consider </span><font color="Maroon" title="c1">n</font> being    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="numbers.html#K5" title="NUMBERS:func.5">NAT</a> ;<br/>
<span class="kw">consider </span><font color="Maroon" title="c2">C</font> being   <a href="topreal2.html#NM1" title="TOPREAL2:NM.1">Simple_closed_curve</a>;<br/>
<a NAME="E3:38_1_1"/><span class="lab"><font color="Green" title="E22">A1</font></span>: 
 <a href="jordan1e.html#K1" title="JORDAN1E:func.1">Upper_Seq</a> <font color="Maroon" title="c2">C</font>,<font color="Maroon" title="c1">n</font> <a href="goboard1.html#R1" title="GOBOARD1:pred.1">is_sequence_on</a>  <a href="jordan8.html#K1" title="JORDAN8:func.1">Gauge</a> <font color="Maroon" title="c2">C</font>,<font color="Maroon" title="c1">n</font>
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="jordan1g.html#T4" title="JORDAN1G:th.4">JORDAN1G:4</a></span>;<br/>
<span class="kw">take </span>
 <a href="jordan1e.html#K1" title="JORDAN1E:func.1">Upper_Seq</a> <font color="Maroon" title="c2">C</font>,<font color="Maroon" title="c1">n</font>
; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> ( not  <a href="jordan1e.html#K1" title="JORDAN1E:func.1">Upper_Seq</a> <font color="Maroon" title="c2">C</font>,<font color="Maroon" title="c1">n</font> is  <a href="funct_1.html#V3" title="FUNCT_1:attr.3">constant</a>  &amp;  <a href="jordan1e.html#K1" title="JORDAN1E:func.1">Upper_Seq</a> <font color="Maroon" title="c2">C</font>,<font color="Maroon" title="c1">n</font> is  <a href="goboard5.html#V2" title="GOBOARD5:attr.2">standard</a>  &amp;  <a href="jordan1e.html#K1" title="JORDAN1E:func.1">Upper_Seq</a> <font color="Maroon" title="c2">C</font>,<font color="Maroon" title="c1">n</font> is  <a href="goboard5.html#V1" title="GOBOARD5:attr.1">s.c.c.</a>  )</span><br/>

<a NAME="E4:38_1_1"/>
 <a href="finseq_1.html#K3" title="FINSEQ_1:func.3">len</a> <span class="p1">(<span class="default"><a href="jordan1e.html#K1" title="JORDAN1E:func.1">Upper_Seq</a> <font color="Maroon" title="c2">C</font>,<font color="Maroon" title="c1">n</font></span>)</span> <a href="xxreal_0.html#NR2" title="XXREAL_0:NR.2">&gt;=</a> 2
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="topreal1.html#D10" title="TOPREAL1:def.10">TOPREAL1:def 10</a></span>;<br/>
<span class="kw">hence </span><a NAME="E5:38_1_1"/>
( not  <a href="jordan1e.html#K1" title="JORDAN1E:func.1">Upper_Seq</a> <font color="Maroon" title="c2">C</font>,<font color="Maroon" title="c1">n</font> is  <a href="funct_1.html#V3" title="FUNCT_1:attr.3">constant</a>  &amp;  <a href="jordan1e.html#K1" title="JORDAN1E:func.1">Upper_Seq</a> <font color="Maroon" title="c2">C</font>,<font color="Maroon" title="c1">n</font> is  <a href="goboard5.html#V2" title="GOBOARD5:attr.2">standard</a>  &amp;  <a href="jordan1e.html#K1" title="JORDAN1E:func.1">Upper_Seq</a> <font color="Maroon" title="c2">C</font>,<font color="Maroon" title="c1">n</font> is  <a href="goboard5.html#V1" title="GOBOARD5:attr.1">s.c.c.</a>  )
 <span class="kw">by</span> <span class="lab"><a class="txt" href="#E3:38_1_1"><span class="lab"><font color="Green" title="E22">A1</font></span></a>, <a class="ref" href="jgraph_1.html#T16" title="JGRAPH_1:th.16">JGRAPH_1:16</a>, <a class="ref" href="jordan8.html#T8" title="JORDAN8:th.8">JORDAN8:8</a></span>; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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