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<b>let </b><font color="Maroon" title="c1">V</font> be   <a href="rlvect_1.html#NM2" title="RLVECT_1:NM.2">RealLinearSpace</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">V1</font> being  <a href="struct_0.html#NM2" title="STRUCT_0:NM.2">Subset</a> of <font color="Maroon" title="c1">V</font> holds <br/> ( <font color="Olive" title="b1">V1</font> is <a href="rlsub_1.html#V1" title="RLSUB_1:attr.1">linearly-closed</a> iff ( <font color="Olive" title="b1">V1</font> is <a href="ideal_1.html#V1" title="IDEAL_1:attr.1">add-closed</a> &amp; <font color="Olive" title="b1">V1</font> is <a href="lpspace1.html#V1" title="LPSPACE1:attr.1">multi-closed</a> ) )</span><br/><b>let </b><font color="Maroon" title="c2">V1</font> be   <a href="struct_0.html#NM2" title="STRUCT_0:NM.2">Subset</a> of <font color="Maroon" title="c1">V</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">V1</font> is <a href="rlsub_1.html#V1" title="RLSUB_1:attr.1">linearly-closed</a> iff ( <font color="Maroon" title="c2">V1</font> is <a href="ideal_1.html#V1" title="IDEAL_1:attr.1">add-closed</a> &amp; <font color="Maroon" title="c2">V1</font> is <a href="lpspace1.html#V1" title="LPSPACE1:attr.1">multi-closed</a> ) )</span><br/>



<div><b>hereby </b> <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> ( <font color="Maroon" title="c2">V1</font> is <a href="ideal_1.html#V1" title="IDEAL_1:attr.1">add-closed</a> &amp; <font color="Maroon" title="c2">V1</font> is <a href="lpspace1.html#V1" title="LPSPACE1:attr.1">multi-closed</a> implies <font color="Maroon" title="c2">V1</font> is <a href="rlsub_1.html#V1" title="RLSUB_1:attr.1">linearly-closed</a> )</span>
<div class="add"><b>assume </b><a NAME="E1:2_1"/>
<font color="Maroon" title="c2">V1</font> is <a href="rlsub_1.html#V1" title="RLSUB_1:attr.1">linearly-closed</a>
 ; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> ( <font color="Maroon" title="c2">V1</font> is <a href="ideal_1.html#V1" title="IDEAL_1:attr.1">add-closed</a> &amp; <font color="Maroon" title="c2">V1</font> is <a href="lpspace1.html#V1" title="LPSPACE1:attr.1">multi-closed</a> )</span><br/><a NAME="E2:2_1"/><b>then </b>
( ( for <font color="Olive" title="b1">v</font>, <font color="Olive" title="b2">u</font> being  <a href="rlvect_1.html#NM1" title="RLVECT_1:NM.1">VECTOR</a> of <font color="Maroon" title="c1">V</font>  st <font color="Olive" title="b1">v</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">V1</font> &amp; <font color="Olive" title="b2">u</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">V1</font> holds <br/><font color="Olive" title="b1">v</font> <a href="rlvect_1.html#K3" title="RLVECT_1:func.3">+</a> <font color="Olive" title="b2">u</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">V1</font> ) &amp; ( for <font color="Olive" title="b1">a</font> being  <a href="real_1.html#NM1" title="REAL_1:NM.1">Real</a><br/> for <font color="Olive" title="b2">v</font> being  <a href="rlvect_1.html#NM1" title="RLVECT_1:NM.1">VECTOR</a> of <font color="Maroon" title="c1">V</font>  st <font color="Olive" title="b2">v</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">V1</font> holds <br/><font color="Olive" title="b1">a</font> <a href="rlvect_1.html#K1" title="RLVECT_1:func.1">*</a> <font color="Olive" title="b2">v</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">V1</font> ) )
 <b>by </b><i><a class="ref" href="rlsub_1.html#D1" title="RLSUB_1:def.1">RLSUB_1:def 1</a></i>;<br/><b>hence </b><a NAME="E3:2_1"/>
( <font color="Maroon" title="c2">V1</font> is <a href="ideal_1.html#V1" title="IDEAL_1:attr.1">add-closed</a> &amp; <font color="Maroon" title="c2">V1</font> is <a href="lpspace1.html#V1" title="LPSPACE1:attr.1">multi-closed</a> )
 <b>by </b><i><a class="ref" href="lpspace1.html#D1" target="_self" title="LPSPACE1:def.1">RLSUBDef0</a>, <a class="ref" href="ideal_1.html#D1" title="IDEAL_1:def.1">IDEAL_1:def 1</a></i>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> verum</span><br/></div>
<b>end;</b></div>

<b>assume </b><a NAME="E2:2"/>
( <font color="Maroon" title="c2">V1</font> is <a href="ideal_1.html#V1" title="IDEAL_1:attr.1">add-closed</a> &amp; <font color="Maroon" title="c2">V1</font> is <a href="lpspace1.html#V1" title="LPSPACE1:attr.1">multi-closed</a> )
 ; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> <font color="Maroon" title="c2">V1</font> is <a href="rlsub_1.html#V1" title="RLSUB_1:attr.1">linearly-closed</a></span><br/>

<a NAME="E3:2"/><b>then </b>
( ( for <font color="Olive" title="b1">v</font>, <font color="Olive" title="b2">u</font> being  <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c1">V</font>  st <font color="Olive" title="b1">v</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">V1</font> &amp; <font color="Olive" title="b2">u</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">V1</font> holds <br/><font color="Olive" title="b1">v</font> <a href="rlvect_1.html#K3" title="RLVECT_1:func.3">+</a> <font color="Olive" title="b2">u</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">V1</font> ) &amp; ( for <font color="Olive" title="b1">a</font> being  <a href="real_1.html#NM1" title="REAL_1:NM.1">Real</a><br/> for <font color="Olive" title="b2">v</font> being  <a href="rlvect_1.html#NM1" title="RLVECT_1:NM.1">VECTOR</a> of <font color="Maroon" title="c1">V</font>  st <font color="Olive" title="b2">v</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">V1</font> holds <br/><font color="Olive" title="b1">a</font> <a href="rlvect_1.html#K1" title="RLVECT_1:func.1">*</a> <font color="Olive" title="b2">v</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c2">V1</font> ) )
 
<b>by </b><i><a class="ref" href="lpspace1.html#D1" target="_self" title="LPSPACE1:def.1">RLSUBDef0</a>, <a class="ref" href="ideal_1.html#D1" title="IDEAL_1:def.1">IDEAL_1:def 1</a></i>;<br/>
<b>hence </b><a NAME="E4:2"/>
<font color="Maroon" title="c2">V1</font> is <a href="rlsub_1.html#V1" title="RLSUB_1:attr.1">linearly-closed</a>
 <b>by </b><i><a class="ref" href="rlsub_1.html#D1" title="RLSUB_1:def.1">RLSUB_1:def 1</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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