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<b>let </b><font color="Maroon">c<sub>1</sub></font> be  non <a href="struct_0.html#V3">empty</a> <a href="pre_topc.html#NM1">TopSpace</a>;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font>, <font color="Maroon">c<sub>3</sub></font>, <font color="Maroon">c<sub>4</sub></font>, <font color="Maroon">c<sub>5</sub></font> be  non <a href="struct_0.html#V3">empty</a>  <a href="pre_topc.html#M1">SubSpace</a> of <font color="Maroon">c<sub>1</sub></font>;<br/>



<b>assume </b><a NAME="E1:39"/><i><font color="Green">E29</font></i>: 
( <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>4</sub></font> <a href="tsep_2.html#R4" target="_self">constitute_a_decomposition</a>  &amp; <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>5</sub></font> <a href="tsep_2.html#R4" target="_self">constitute_a_decomposition</a>  )
 ;<br/>

<b>assume </b><a NAME="E2:39"/>
<font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>3</sub></font> <a href="tsep_1.html#R3">are_separated</a> 
 ;<br/>

<a NAME="E3:39"/><b>then </b>
<font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>3</sub></font> <a href="tsep_1.html#R4">are_weakly_separated</a> 
 
<b>by </b><i><a class="ref" href="tsep_1.html#T85">TSEP_1:85</a></i>;<br/>
<b>hence </b><a NAME="E4:39"/>
<font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>5</sub></font> <a href="tsep_1.html#R4">are_weakly_separated</a> 
 <b>by </b><i><a class="txt" href="tsep_2.html#E1:39"><i><font color="Green">E29</font></i></a>, <a class="ref" href="tsep_2.html#T39" target="_self">Th39</a></i>;<br/>


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