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<b>let </b><font color="Maroon">c<sub>1</sub></font> be  <a href="sprect_1.html#V1" target="_self">rectangular</a> <a href="struct_0.html#NM8">FinSequence</a> of <span class="p1">(<span class="default"><a href="euclid.html#K15">TOP-REAL</a> 2</span>)</span>;<br/>

<b>consider </b><font color="Maroon">c<sub>2</sub></font> being  non <a href="xboole_0.html#V1">empty</a> <a href="compts_1.html#V6">compact</a> non <a href="sppol_1.html#V1">horizontal</a> non <a href="sppol_1.html#V2">vertical</a> <a href="struct_0.html#NM2">Subset</a> of <span class="p1">(<span class="default"><a href="euclid.html#K15">TOP-REAL</a> 2</span>)</span><b> such that </b><br/><a NAME="E2:110"/><i><font color="Green">E84</font></i>: 
<font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R1">=</a>  <a href="sprect_1.html#K1" target="_self">SpStSeq</a> <font color="Maroon">c<sub>2</sub></font>
 <b>by </b><i><a class="ref" href="sprect_1.html#D2" target="_self">Def2</a></i>;<br/>
<a NAME="E3:110"/><i><font color="Green">E85</font></i>: 
<font color="Maroon">c<sub>1</sub></font> <a href="finseq_4.html#K4">/.</a> 1 <a href="hidden.html#R1">=</a>  <a href="pscomp_1.html#K20">NW-corner</a> <font color="Maroon">c<sub>2</sub></font>
 
<b>by </b><i><a class="txt" href="sprect_1.html#E2:110"><i><font color="Green">E84</font></i></a>, <a class="ref" href="sprect_1.html#T37" target="_self">Th37</a></i>;<br/>
<b>hence </b><a NAME="E4:110"/>
<font color="Maroon">c<sub>1</sub></font> <a href="finseq_4.html#K4">/.</a> 1 <a href="hidden.html#R1">=</a>  <a href="pscomp_1.html#K29">N-min</a> <span class="p1">(<span class="default"><a href="topreal1.html#K5">L~</a> <font color="Maroon">c<sub>1</sub></font></span>)</span>
 <b>by </b><i><a class="txt" href="sprect_1.html#E2:110"><i><font color="Green">E84</font></i></a>, <a class="ref" href="sprect_1.html#T84" target="_self">Th84</a></i>;<br/>

<b>thus </b><a NAME="E5:110"/>
<font color="Maroon">c<sub>1</sub></font> <a href="finseq_4.html#K4">/.</a> 1 <a href="hidden.html#R1">=</a>  <a href="pscomp_1.html#K28">W-max</a> <span class="p1">(<span class="default"><a href="topreal1.html#K5">L~</a> <font color="Maroon">c<sub>1</sub></font></span>)</span>
 <b>by </b><i><a class="txt" href="sprect_1.html#E2:110"><i><font color="Green">E84</font></i></a>, <a class="txt" href="sprect_1.html#E3:110"><i><font color="Green">E85</font></i></a>, <a class="ref" href="sprect_1.html#T83" target="_self">Th83</a></i>;<br/>


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