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<b>consider </b><font color="Maroon">f</font> being  non <a href="funct_1.html#V3">constant</a> <a href="goboard5.html#V2">standard</a> <a href="goboard5.html#NM1">special_circular_sequence</a>;<br/>
<b>take </b>
 <a href="topreal1.html#K5">L~</a> <font color="Maroon">f</font>
;<br/>

<b>thus </b><a NAME="E2:4_1_1"/>
(  <a href="topreal1.html#K5">L~</a> <font color="Maroon">f</font> is <a href="compts_1.html#V6">compact</a> &amp; not  <a href="topreal1.html#K5">L~</a> <font color="Maroon">f</font> is <a href="sppol_1.html#V2">vertical</a> &amp; not  <a href="topreal1.html#K5">L~</a> <font color="Maroon">f</font> is <a href="sppol_1.html#V1">horizontal</a> &amp;  <a href="topreal1.html#K5">L~</a> <font color="Maroon">f</font> is <a href="topreal2.html#V1">being_simple_closed_curve</a> &amp; not  <a href="topreal1.html#K5">L~</a> <font color="Maroon">f</font> is <a href="xboole_0.html#V1">empty</a> )
 ;<br/>


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