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<b>reconsider </b><font color="Maroon">r</font> = 0 as   <a href="int_1.html#NM1">Integer</a> ;<br/>
<a NAME="E2:116"/>
 <a href="toprealb.html#K13" target="_self">CircleMap</a> <span class="p1">(<span class="default"><a href="toprealb.html#K4" target="_self">R^1</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default">1 <a href="real_1.html#K6">/</a> 2</span>)</span> <a href="xcmplx_0.html#K2">+</a> <font color="Maroon">r</font></span>)</span></span>)</span> is <a href="t_0topsp.html#V1">open</a>
 
;<br/>
<b>hence </b><a NAME="E3:116"/>
 <a href="toprealb.html#K13" target="_self">CircleMap</a> <span class="p1">(<span class="default"><a href="toprealb.html#K4" target="_self">R^1</a> <span class="p2">(<span class="default">1 <a href="real_1.html#K6">/</a> 2</span>)</span></span>)</span> <a href="tops_2.html#NR1" target="_self">is_homeomorphism</a> 
 <b>by </b><i><a class="ref" href="topreala.html#T37">TOPREALA:37</a></i>;<br/>


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