<?xml version="1.0"?>
<div class="add">

<b>let </b><font color="Maroon">F</font> be   <a href="vectsp_1.html#NM2">Field</a>;<br/><b>let </b><font color="Maroon">V</font> be  <a href="matrlin.html#V2">finite-dimensional</a> <a href="vectsp_1.html#NM6">VectSp</a> of <font color="Maroon">F</font>;<br/><b>let </b><font color="Maroon">m</font> be   <a href="nat_1.html#NM1">Nat</a>, <font color="Maroon">n</font> be   <a href="nat_1.html#NM1">Nat</a>;<br/>





<b>assume </b><a NAME="E1:34"/><i><font color="Green">E24</font></i>: 
( 1 <a href="xxreal_0.html#R1">&lt;=</a> <font color="Maroon">m</font> &amp; <font color="Maroon">m</font> <a href="xxreal_0.html#NR3" target="_self">&lt;</a> <font color="Maroon">n</font> &amp; <font color="Maroon">n</font> <a href="xxreal_0.html#R1">&lt;=</a>  <a href="vectsp_9.html#K1">dim</a> <font color="Maroon">V</font> )
 ;<br/>

<b>set </b><font color="Maroon">S</font> =  <a href="pencil_4.html#K7" target="_self">GrassmannSpace</a> <font color="Maroon">V</font>,<font color="Maroon">m</font>,<font color="Maroon">n</font>;<br/>
<b>let </b><font color="Maroon">B</font> be   <a href="pencil_1.html#NM1">Block</a> of <span class="p1">(<span class="default"><a href="pencil_4.html#K7" target="_self">GrassmannSpace</a> <font color="Maroon">V</font>,<font color="Maroon">m</font>,<font color="Maroon">n</font></span>)</span>; <i><font color="Red">:: according to </font></i><a class="ref" href="pencil_1.html#D6">PENCIL_1:def 6</a><br/>

<a NAME="E2:34"/>
not the <a href="pre_topc.html#U1">topology</a> of <span class="p1">(<span class="default"><a href="pencil_4.html#K7" target="_self">GrassmannSpace</a> <font color="Maroon">V</font>,<font color="Maroon">m</font>,<font color="Maroon">n</font></span>)</span> is <a href="xboole_0.html#V1">empty</a>
 
<b>by </b><i>, <a class="txt" href="pencil_4.html#E11:34"><i><font color="Green">E33</font></i></a></i>;<br/>
<b>then consider </b><font color="Maroon">W</font> being    <a href="vectsp_4.html#M1">Subspace</a> of <font color="Maroon">V</font><b> such that </b><br/><a NAME="E4:34"/><i><font color="Green">E29</font></i>: 
(  <a href="vectsp_9.html#K1">dim</a> <font color="Maroon">W</font> <a href="hidden.html#R1">=</a> <font color="Maroon">n</font> &amp; <font color="Maroon">B</font> <a href="hidden.html#R1">=</a> <font color="Maroon">m</font> <a href="vectsp_9.html#K2">Subspaces_of</a> <font color="Maroon">W</font> )
 <b>by </b><i><a class="ref" href="pencil_4.html#T2" target="_self">Th2</a></i>;<br/>
<a NAME="E5:34"/>
<font color="Maroon">m</font> <a href="xcmplx_0.html#K2">+</a> 1 <a href="xxreal_0.html#R1">&lt;=</a> <font color="Maroon">n</font>
 
<b>by </b><i><a class="txt" href="pencil_4.html#E11:34"><i><font color="Green">E33</font></i></a>, <a class="ref" href="nat_1.html#T38">NAT_1:38</a></i>;<br/>
<b>then consider </b><font color="Maroon">U</font> being  <a href="vectsp_1.html#V11">strict</a>  <a href="vectsp_4.html#M1">Subspace</a> of <font color="Maroon">W</font><b> such that </b><br/><a NAME="E7:34"/><i><font color="Green">E31</font></i>: 
 <a href="vectsp_9.html#K1">dim</a> <font color="Maroon">U</font> <a href="hidden.html#R1">=</a> <font color="Maroon">m</font> <a href="xcmplx_0.html#K2">+</a> 1
 <b>by </b><i><a class="txt" href="pencil_4.html#E16:34"><i><font color="Green">E34</font></i></a>, <a class="ref" href="vectsp_9.html#T39">VECTSP_9:39</a></i>;<br/>
<b>consider </b><font color="Maroon">I</font> being    <a href="vectsp_7.html#M1">Basis</a> of <font color="Maroon">U</font>;<br/>
<b>reconsider </b><font color="Maroon">I'</font> = <font color="Maroon">I</font> as  <a href="finset_1.html#V1">finite</a> <a href="struct_0.html#NM2">Subset</a> of <font color="Maroon">U</font> <b>by </b><i><a class="ref" href="vectsp_9.html#T24">VECTSP_9:24</a></i>;<br/>
<a NAME="E10:34"/><i><font color="Green">E32</font></i>: 
( <font color="Maroon">I</font> is <a href="vectsp_7.html#V1">linearly-independent</a> &amp;  <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I</font> <a href="hidden.html#R1">=</a>  <a href="vectsp_1.html#G4">VectSpStr</a>(# the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">U</font>,the <a href="rlvect_1.html#U1">add</a> of <font color="Maroon">U</font>,the <a href="struct_0.html#U2">Zero</a> of <font color="Maroon">U</font>,the <a href="vectsp_1.html#U2">lmult</a> of <font color="Maroon">U</font> #) )
 
<b>by </b><i><a class="ref" href="vectsp_7.html#D3">VECTSP_7:def 3</a></i>;<br/>
<a NAME="E11:34"/><i><font color="Green">E33</font></i>: 
 <a href="card_1.html#K1">Card</a> <font color="Maroon">I</font> <a href="hidden.html#R1">=</a> <font color="Maroon">m</font> <a href="xcmplx_0.html#K2">+</a> 1
 
<b>by </b><i>, <a class="ref" href="vectsp_9.html#D2">VECTSP_9:def 2</a></i>;<br/>
<b>reconsider </b><font color="Maroon">m</font> = <font color="Maroon">m</font> as    <a href="subset_1.html#M1">Element</a> of  <a href="numbers.html#K5">NAT</a>  <b>by </b><i><a class="ref" href="ordinal1.html#D13">ORDINAL1:def 13</a></i>;<br/>
<a NAME="E13:34"/>
1 <a href="nat_1.html#K1">+</a> 1 <a href="xxreal_0.html#R1">&lt;=</a> <font color="Maroon">m</font> <a href="nat_1.html#K1">+</a> 1
 
<b>by </b><i><a class="txt" href="pencil_4.html#E11:34"><i><font color="Green">E33</font></i></a>, <a class="ref" href="xreal_1.html#T9">XREAL_1:9</a></i>;<br/>
<a NAME="E14:34"/><b>then </b>
2 <a href="tarski.html#R1">c=</a>  <a href="card_1.html#K1">Card</a> <font color="Maroon">I</font>
 
<b>by </b><i><a class="ref" href="card_1.html#T56">CARD_1:56</a>, </i>;<br/>
<b>then consider </b><font color="Maroon">i</font> being    <a href="hidden.html#M1">set</a> , <font color="Maroon">j</font> being    <a href="hidden.html#M1">set</a> <b> such that </b><br/><a NAME="E16:34"/><i><font color="Green">E34</font></i>: 
( <font color="Maroon">i</font> <a href="hidden.html#R2">in</a> <font color="Maroon">I</font> &amp; <font color="Maroon">j</font> <a href="hidden.html#R2">in</a> <font color="Maroon">I</font> &amp; <font color="Maroon">i</font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a> <font color="Maroon">j</font> )
 <b>by </b><i><a class="ref" href="pencil_1.html#T2">PENCIL_1:2</a></i>;<br/>
<a NAME="E17:34"/><i><font color="Green">E36</font></i>: 
<font color="Maroon">I</font> <a href="subset_1.html#K7">\</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><font color="Maroon">i</font></span><a href="tarski.html#K1">}</a></span> <a href="tarski.html#R1">c=</a> <font color="Maroon">I</font>
 
<b>by </b><i><a class="ref" href="xboole_1.html#T36">XBOOLE_1:36</a></i>;<br/>
<b>reconsider </b><font color="Maroon">I1</font> = <font color="Maroon">I'</font> <a href="subset_1.html#K7">\</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><font color="Maroon">i</font></span><a href="tarski.html#K1">}</a></span> as  <a href="finset_1.html#V1">finite</a> <a href="struct_0.html#NM2">Subset</a> of <font color="Maroon">U</font> ;<br/>
<a NAME="E19:34"/><i><font color="Green">E52</font></i>: 
<font color="Maroon">I</font> <a href="subset_1.html#K7">\</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><font color="Maroon">j</font></span><a href="tarski.html#K1">}</a></span> <a href="tarski.html#R1">c=</a> <font color="Maroon">I</font>
 
<b>by </b><i><a class="ref" href="xboole_1.html#T36">XBOOLE_1:36</a></i>;<br/>
<b>reconsider </b><font color="Maroon">I2</font> = <font color="Maroon">I'</font> <a href="subset_1.html#K7">\</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><font color="Maroon">j</font></span><a href="tarski.html#K1">}</a></span> as  <a href="finset_1.html#V1">finite</a> <a href="struct_0.html#NM2">Subset</a> of <font color="Maroon">U</font> ;<br/>
<a NAME="E21:34"/><i><font color="Green">E67</font></i>: 
<font color="Maroon">I1</font> is <a href="vectsp_7.html#V1">linearly-independent</a>
 
<b>by </b><i><a class="ref" href="vectsp_7.html#T2">VECTSP_7:2</a>, <a class="txt" href="pencil_4.html#E17:34"><i><font color="Green">E36</font></i></a>, </i>;<br/>
<a NAME="E22:34"/>
<font color="Maroon">I1</font> <a href="tarski.html#R1">c=</a> the <a href="struct_0.html#U1">carrier</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font></span>)</span>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="34_1"><b>proof </b></a><div class="add">

<b>let </b><font color="Maroon">a</font> be    <a href="hidden.html#M1">set</a> ; <i><font color="Red">:: according to </font></i><a class="ref" href="tarski.html#D3">TARSKI:def 3</a><br/>

<b>assume </b><a NAME="E1:34_1"/>
<font color="Maroon">a</font> <a href="hidden.html#R2">in</a> <font color="Maroon">I1</font>
 ;<br/>

<a NAME="E2:34_1"/><b>then </b>
<font color="Maroon">a</font> <a href="rlvect_1.html#R1">in</a>  <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font>
 
<b>by </b><i><a class="ref" href="vectsp_7.html#T13">VECTSP_7:13</a></i>;<br/>
<b>hence </b><a NAME="E3:34_1"/>
<font color="Maroon">a</font> <a href="hidden.html#R2">in</a> the <a href="struct_0.html#U1">carrier</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font></span>)</span>
 <b>by </b><i><a class="ref" href="rlvect_1.html#D1">RLVECT_1:def 1</a></i>;<br/>


</div><b>end;</b></div>
<b>then reconsider </b><font color="Maroon">I1'</font> = <font color="Maroon">I1</font> as   <a href="struct_0.html#NM2">Subset</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font></span>)</span> ;<br/>
<b>reconsider </b><font color="Maroon">II1</font> = <font color="Maroon">I1'</font> as  <a href="vectsp_7.html#V1">linearly-independent</a> <a href="struct_0.html#NM2">Subset</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font></span>)</span> <b>by </b><i><a class="ref" href="vectsp_9.html#T16">VECTSP_9:16</a>, </i>;<br/>
<a NAME="E25:34"/>
 <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">II1</font> <a href="hidden.html#R1">=</a>  <a href="vectsp_1.html#G4">VectSpStr</a>(# the <a href="struct_0.html#U1">carrier</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font></span>)</span>,the <a href="rlvect_1.html#U1">add</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font></span>)</span>,the <a href="struct_0.html#U2">Zero</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font></span>)</span>,the <a href="vectsp_1.html#U2">lmult</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font></span>)</span> #)
 
<b>by </b><i><a class="ref" href="vectsp_9.html#T21">VECTSP_9:21</a></i>;<br/>
<a NAME="E26:34"/><b>then </b><i><font color="Green">E68</font></i>: 
<font color="Maroon">I1</font> is    <a href="vectsp_7.html#M1">Basis</a> of  <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font>
 
<b>by </b><i><a class="ref" href="vectsp_7.html#D3">VECTSP_7:def 3</a></i>;<br/>
 <a href="card_1.html#K4">card</a> <font color="Maroon">I1</font> = 
<span class="p1">(<span class="default"><a href="card_1.html#K4">card</a> <font color="Maroon">I'</font></span>)</span> <a href="xcmplx_0.html#K6">-</a> <span class="p1">(<span class="default"><a href="card_1.html#K4">card</a> <span class="p2"><a href="tarski.html#K1">{</a><span class="default"><font color="Maroon">i</font></span><a href="tarski.html#K1">}</a></span></span>)</span>
<b>by </b><i><a class="ref" href="pencil_4.html#T3" target="_self">Th3</a>, <a class="ref" href="euler_1.html#T5">EULER_1:5</a></i>
<br/>.= 
<span class="p1">(<span class="default"><font color="Maroon">m</font> <a href="nat_1.html#K1">+</a> 1</span>)</span> <a href="xcmplx_0.html#K6">-</a> 1
<b>by </b><i>, <a class="ref" href="card_1.html#T79">CARD_1:79</a></i>
;<br/>
<a NAME="E28:34"/><b>then </b><i><font color="Green">E81</font></i>: 
 <a href="vectsp_9.html#K1">dim</a> <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font></span>)</span> <a href="hidden.html#R1">=</a> <font color="Maroon">m</font>
 
<b>by </b><i><a class="ref" href="pencil_4.html#T4" target="_self">Th4</a>, <a class="ref" href="vectsp_9.html#D2">VECTSP_9:def 2</a></i>;<br/>
<a NAME="E29:34"/>
 <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font> is  <a href="vectsp_1.html#V11">strict</a>  <a href="vectsp_4.html#M1">Subspace</a> of <font color="Maroon">W</font>
 
<b>by </b><i><a class="ref" href="vectsp_4.html#T34">VECTSP_4:34</a></i>;<br/>
<a NAME="E30:34"/><b>then </b><i><font color="Green">E82</font></i>: 
 <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font> <a href="hidden.html#R2">in</a> <font color="Maroon">B</font>
 
<b>by </b><i><a class="ref" href="pencil_4.html#T5" target="_self">Th5</a>, <a class="txt" href="pencil_4.html#E16:34"><i><font color="Green">E34</font></i></a>, <a class="ref" href="vectsp_9.html#D3">VECTSP_9:def 3</a></i>;<br/>
<a NAME="E31:34"/><i><font color="Green">E83</font></i>: 
<font color="Maroon">I2</font> is <a href="vectsp_7.html#V1">linearly-independent</a>
 
<b>by </b><i><a class="ref" href="vectsp_7.html#T2">VECTSP_7:2</a>, <a class="txt" href="pencil_4.html#E17:34"><i><font color="Green">E36</font></i></a>, </i>;<br/>
<a NAME="E32:34"/>
<font color="Maroon">I2</font> <a href="tarski.html#R1">c=</a> the <a href="struct_0.html#U1">carrier</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font></span>)</span>
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="34_3"><b>proof </b></a><div class="add">

<b>let </b><font color="Maroon">a</font> be    <a href="hidden.html#M1">set</a> ; <i><font color="Red">:: according to </font></i><a class="ref" href="tarski.html#D3">TARSKI:def 3</a><br/>

<b>assume </b><a NAME="E1:34_3"/>
<font color="Maroon">a</font> <a href="hidden.html#R2">in</a> <font color="Maroon">I2</font>
 ;<br/>

<a NAME="E2:34_3"/><b>then </b>
<font color="Maroon">a</font> <a href="rlvect_1.html#R1">in</a>  <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font>
 
<b>by </b><i><a class="ref" href="vectsp_7.html#T13">VECTSP_7:13</a></i>;<br/>
<b>hence </b><a NAME="E3:34_3"/>
<font color="Maroon">a</font> <a href="hidden.html#R2">in</a> the <a href="struct_0.html#U1">carrier</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font></span>)</span>
 <b>by </b><i><a class="ref" href="rlvect_1.html#D1">RLVECT_1:def 1</a></i>;<br/>


</div><b>end;</b></div>
<b>then reconsider </b><font color="Maroon">I2'</font> = <font color="Maroon">I2</font> as   <a href="struct_0.html#NM2">Subset</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font></span>)</span> ;<br/>
<b>reconsider </b><font color="Maroon">II2</font> = <font color="Maroon">I2'</font> as  <a href="vectsp_7.html#V1">linearly-independent</a> <a href="struct_0.html#NM2">Subset</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font></span>)</span> <b>by </b><i><a class="ref" href="vectsp_9.html#T16">VECTSP_9:16</a>, </i>;<br/>
<a NAME="E35:34"/>
 <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">II2</font> <a href="hidden.html#R1">=</a>  <a href="vectsp_1.html#G4">VectSpStr</a>(# the <a href="struct_0.html#U1">carrier</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font></span>)</span>,the <a href="rlvect_1.html#U1">add</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font></span>)</span>,the <a href="struct_0.html#U2">Zero</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font></span>)</span>,the <a href="vectsp_1.html#U2">lmult</a> of <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font></span>)</span> #)
 
<b>by </b><i><a class="ref" href="vectsp_9.html#T21">VECTSP_9:21</a></i>;<br/>
<a NAME="E36:34"/><b>then </b><i><font color="Green">E84</font></i>: 
<font color="Maroon">I2</font> is    <a href="vectsp_7.html#M1">Basis</a> of  <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font>
 
<b>by </b><i><a class="ref" href="vectsp_7.html#D3">VECTSP_7:def 3</a></i>;<br/>
 <a href="card_1.html#K4">card</a> <font color="Maroon">I2</font> = 
<span class="p1">(<span class="default"><a href="card_1.html#K4">card</a> <font color="Maroon">I'</font></span>)</span> <a href="xcmplx_0.html#K6">-</a> <span class="p1">(<span class="default"><a href="card_1.html#K4">card</a> <span class="p2"><a href="tarski.html#K1">{</a><span class="default"><font color="Maroon">j</font></span><a href="tarski.html#K1">}</a></span></span>)</span>
<b>by </b><i><a class="ref" href="pencil_4.html#T3" target="_self">Th3</a>, <a class="ref" href="euler_1.html#T5">EULER_1:5</a></i>
<br/>.= 
<span class="p1">(<span class="default"><font color="Maroon">m</font> <a href="nat_1.html#K1">+</a> 1</span>)</span> <a href="xcmplx_0.html#K6">-</a> 1
<b>by </b><i>, <a class="ref" href="card_1.html#T79">CARD_1:79</a></i>
;<br/>
<a NAME="E38:34"/><b>then </b><i><font color="Green">E85</font></i>: 
 <a href="vectsp_9.html#K1">dim</a> <span class="p1">(<span class="default"><a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font></span>)</span> <a href="hidden.html#R1">=</a> <font color="Maroon">m</font>
 
<b>by </b><i>, <a class="ref" href="vectsp_9.html#D2">VECTSP_9:def 2</a></i>;<br/>
<a NAME="E39:34"/>
 <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font> is  <a href="vectsp_1.html#V11">strict</a>  <a href="vectsp_4.html#M1">Subspace</a> of <font color="Maroon">W</font>
 
<b>by </b><i><a class="ref" href="vectsp_4.html#T34">VECTSP_4:34</a></i>;<br/>
<a NAME="E40:34"/><b>then </b><i><font color="Green">E86</font></i>: 
 <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font> <a href="hidden.html#R2">in</a> <font color="Maroon">B</font>
 
<b>by </b><i><a class="ref" href="pencil_4.html#D1" target="_self">Def1</a>, <a class="txt" href="pencil_4.html#E16:34"><i><font color="Green">E34</font></i></a>, <a class="ref" href="vectsp_9.html#D3">VECTSP_9:def 3</a></i>;<br/>
<a NAME="E41:34"/>
not <font color="Maroon">j</font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><font color="Maroon">i</font></span><a href="tarski.html#K1">}</a></span>
 
<b>by </b><i><a class="ref" href="tarski.html#D1">TARSKI:def 1</a>, <a class="ref" href="pencil_4.html#T3" target="_self">Th3</a></i>;<br/>
<a NAME="E42:34"/><b>then </b>
<font color="Maroon">j</font> <a href="hidden.html#R2">in</a> <font color="Maroon">I1</font>
 
<b>by </b><i><a class="ref" href="pencil_4.html#T3" target="_self">Th3</a>, <a class="ref" href="xboole_0.html#D4">XBOOLE_0:def 4</a></i>;<br/>
<a NAME="E43:34"/><b>then </b><i><font color="Green">E89</font></i>: 
<font color="Maroon">j</font> <a href="rlvect_1.html#R1">in</a>  <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I1</font>
 
<b>by </b><i><a class="ref" href="vectsp_7.html#T13">VECTSP_7:13</a></i>;<br/>
<a NAME="E44:34"/>
not <font color="Maroon">j</font> <a href="rlvect_1.html#R1">in</a>  <a href="vectsp_7.html#K1">Lin</a> <font color="Maroon">I2</font>
 
<b>by </b><i><a class="ref" href="pencil_4.html#T3" target="_self">Th3</a>, <a class="txt" href="pencil_4.html#E17:34"><i><font color="Green">E36</font></i></a>, <a class="ref" href="vectsp_9.html#T18">VECTSP_9:18</a></i>;<br/>
<b>hence </b><a NAME="E45:34"/>
2 <a href="tarski.html#R1">c=</a>  <a href="card_1.html#K1">Card</a> <font color="Maroon">B</font>
 <b>by </b><i>, <a class="ref" href="pencil_4.html#T6" target="_self">Th6</a>, , <a class="ref" href="pencil_1.html#T2">PENCIL_1:2</a></i>;<br/>


</div>
