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<b>let </b><font color="Maroon" title="c1">X</font> be  non <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a> <a href="pre_topc.html#NM1" title="PRE_TOPC:NM.1">TopSpace</a>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> for <font color="Olive" title="b1">X1</font>, <font color="Olive" title="b2">X2</font>, <font color="Olive" title="b3">Y</font> being non <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a>  <a href="pre_topc.html#M1" title="PRE_TOPC:mode.1">SubSpace</a> of <font color="Maroon" title="c1">X</font>  st <font color="Olive" title="b1">X1</font> <a href="tsep_1.html#NR2" title="TSEP_1:NR.2">meets</a> <font color="Olive" title="b2">X2</font> &amp; <font color="Olive" title="b1">X1</font>,<font color="Olive" title="b3">Y</font> <a href="tsep_1.html#R3" title="TSEP_1:pred.3">are_separated</a>  holds <br/><font color="Olive" title="b1">X1</font> <a href="tsep_1.html#K2" title="TSEP_1:func.2">meet</a> <font color="Olive" title="b2">X2</font>,<font color="Olive" title="b3">Y</font> <a href="tsep_1.html#R3" title="TSEP_1:pred.3">are_separated</a> </span><br/><b>let </b><font color="Maroon" title="c2">X1</font>, <font color="Maroon" title="c3">X2</font>, <font color="Maroon" title="c4">Y</font> be  non <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a>  <a href="pre_topc.html#M1" title="PRE_TOPC:mode.1">SubSpace</a> of <font color="Maroon" title="c1">X</font>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> ( <font color="Maroon" title="c2">X1</font> <a href="tsep_1.html#NR2" title="TSEP_1:NR.2">meets</a> <font color="Maroon" title="c3">X2</font> &amp; <font color="Maroon" title="c2">X1</font>,<font color="Maroon" title="c4">Y</font> <a href="tsep_1.html#R3" title="TSEP_1:pred.3">are_separated</a>  implies <font color="Maroon" title="c2">X1</font> <a href="tsep_1.html#K2" title="TSEP_1:func.2">meet</a> <font color="Maroon" title="c3">X2</font>,<font color="Maroon" title="c4">Y</font> <a href="tsep_1.html#R3" title="TSEP_1:pred.3">are_separated</a>  )</span><br/>







<b>assume </b><a NAME="E1:88"/>
<font color="Maroon" title="c2">X1</font> <a href="tsep_1.html#NR2" title="TSEP_1:NR.2">meets</a> <font color="Maroon" title="c3">X2</font>
 ; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> (  not <font color="Maroon" title="c2">X1</font>,<font color="Maroon" title="c4">Y</font> <a href="tsep_1.html#R3" title="TSEP_1:pred.3">are_separated</a>  or <font color="Maroon" title="c2">X1</font> <a href="tsep_1.html#K2" title="TSEP_1:func.2">meet</a> <font color="Maroon" title="c3">X2</font>,<font color="Maroon" title="c4">Y</font> <a href="tsep_1.html#R3" title="TSEP_1:pred.3">are_separated</a>  )</span><br/>

<a NAME="E2:88"/><b>then </b><i><font color="Green" title="E56">A1</font></i>: 
<font color="Maroon" title="c2">X1</font> <a href="tsep_1.html#K2" title="TSEP_1:func.2">meet</a> <font color="Maroon" title="c3">X2</font> is    <a href="pre_topc.html#M1" title="PRE_TOPC:mode.1">SubSpace</a> of <font color="Maroon" title="c2">X1</font>
 
<b>by </b><i><a class="ref" href="tsep_1.html#T30" target="_self" title="TSEP_1:th.30">Th30</a></i>;<br/>
<a NAME="E3:88"/>
<font color="Maroon" title="c4">Y</font> is    <a href="pre_topc.html#M1" title="PRE_TOPC:mode.1">SubSpace</a> of <font color="Maroon" title="c4">Y</font>
 
<b>by </b><i><a class="ref" href="tsep_1.html#T2" target="_self" title="TSEP_1:th.2">Th2</a></i>;<br/>
<b>hence </b><a NAME="E4:88"/>
(  not <font color="Maroon" title="c2">X1</font>,<font color="Maroon" title="c4">Y</font> <a href="tsep_1.html#R3" title="TSEP_1:pred.3">are_separated</a>  or <font color="Maroon" title="c2">X1</font> <a href="tsep_1.html#K2" title="TSEP_1:func.2">meet</a> <font color="Maroon" title="c3">X2</font>,<font color="Maroon" title="c4">Y</font> <a href="tsep_1.html#R3" title="TSEP_1:pred.3">are_separated</a>  )
 <b>by </b><i><a class="txt" href="tsep_1.html#E2:88"><i><font color="Green" title="E56">A1</font></i></a>, <a class="ref" href="tsep_1.html#T77" target="_self" title="TSEP_1:th.77">Th77</a></i>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> verum</span><br/>


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