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<b>let </b><font color="Maroon">c<sub>1</sub></font> be    <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font>, <font color="Maroon">c<sub>3</sub></font> be   <a href="partfun1.html#NM1">PartFunc</a> of  <a href="numbers.html#K2">COMPLEX</a> , <a href="numbers.html#K2">COMPLEX</a> ;<br/>





<b>assume </b><a NAME="E1:73"/>
( <font color="Maroon">c<sub>2</sub></font> <a href="cfcont_1.html#R2" target="_self">is_continuous_on</a> <font color="Maroon">c<sub>1</sub></font> &amp; <font color="Maroon">c<sub>2</sub></font> <a href="relset_1.html#K11">"</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default">0</span><a href="tarski.html#K1">}</a></span> <a href="hidden.html#R1">=</a>  <a href="xboole_0.html#K1">{}</a>  &amp; <font color="Maroon">c<sub>3</sub></font> <a href="cfcont_1.html#R2" target="_self">is_continuous_on</a> <font color="Maroon">c<sub>1</sub></font> )
 ;<br/>

<a NAME="E2:73"/><b>then </b>
( <font color="Maroon">c<sub>2</sub></font> <a href="cfunct_1.html#K2">^</a>  <a href="cfcont_1.html#R2" target="_self">is_continuous_on</a> <font color="Maroon">c<sub>1</sub></font> &amp; <font color="Maroon">c<sub>3</sub></font> <a href="cfcont_1.html#R2" target="_self">is_continuous_on</a> <font color="Maroon">c<sub>1</sub></font> )
 
<b>by </b><i><a class="ref" href="cfcont_1.html#T69" target="_self">Th69</a></i>;<br/>
<a NAME="E3:73"/><b>then </b>
<font color="Maroon">c<sub>3</sub></font> <a href="comseq_1.html#K3">(#)</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="cfunct_1.html#K2">^</a> </span>)</span> <a href="cfcont_1.html#R2" target="_self">is_continuous_on</a> <font color="Maroon">c<sub>1</sub></font>
 
<b>by </b><i><a class="ref" href="cfcont_1.html#T65" target="_self">Th65</a></i>;<br/>
<b>hence </b><a NAME="E4:73"/>
<font color="Maroon">c<sub>3</sub></font> <a href="cfunct_1.html#K1">/</a> <font color="Maroon">c<sub>2</sub></font> <a href="cfcont_1.html#R2" target="_self">is_continuous_on</a> <font color="Maroon">c<sub>1</sub></font>
 <b>by </b><i><a class="ref" href="cfunct_1.html#T51">CFUNCT_1:51</a></i>;<br/>


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