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

<span class="kw">let </span><font color="Maroon" title="c1">SAS</font> be   <a href="semi_af1.html#NM1" title="SEMI_AF1:NM.1">Semi_Affine_Space</a>; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> for <font color="Olive" title="b1">o</font>, <font color="Olive" title="b2">b</font>, <font color="Olive" title="b3">a</font> being  <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c1">SAS</font> holds  <font color="Olive" title="b1">o</font>, <a href="semi_af1.html#K3" title="SEMI_AF1:func.3">diff</a> <font color="Olive" title="b2">b</font>,<font color="Olive" title="b3">a</font>,<font color="Olive" title="b1">o</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Olive" title="b3">a</font>,<font color="Olive" title="b2">b</font></span><br/><span class="kw">let </span><font color="Maroon" title="c2">o</font>, <font color="Maroon" title="c3">b</font>, <font color="Maroon" title="c4">a</font> be   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c1">SAS</font>; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> <font color="Maroon" title="c2">o</font>, <a href="semi_af1.html#K3" title="SEMI_AF1:func.3">diff</a> <font color="Maroon" title="c3">b</font>,<font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c3">b</font></span><br/>







<a NAME="E1:118"/>
 <a href="semi_af1.html#R3" title="SEMI_AF1:pred.3">congr</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c2">o</font>, <a href="semi_af1.html#K2" title="SEMI_AF1:func.2">opposite</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font>
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="semi_af1.html#T106" target="_self" title="SEMI_AF1:th.106">Th106</a></span>;<br/>
<a NAME="E2:118"/><span class="kw">then </span><span class="lab"><font color="Green" title="E74">A1</font></span>: 
 <a href="semi_af1.html#R3" title="SEMI_AF1:pred.3">congr</a> <font color="Maroon" title="c2">o</font>, <a href="semi_af1.html#K2" title="SEMI_AF1:func.2">opposite</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font>
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="semi_af1.html#T89" target="_self" title="SEMI_AF1:th.89">Th89</a></span>;<br/>
<a NAME="E3:118"/>
 <a href="semi_af1.html#R3" title="SEMI_AF1:pred.3">congr</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c3">b</font>, <a href="semi_af1.html#K2" title="SEMI_AF1:func.2">opposite</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font>, <a href="semi_af1.html#K1" title="SEMI_AF1:func.1">sum</a> <font color="Maroon" title="c3">b</font>,<span class="p1">(<span class="default"><a href="semi_af1.html#K2" title="SEMI_AF1:func.2">opposite</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font></span>)</span>,<font color="Maroon" title="c2">o</font>
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="semi_af1.html#D5" target="_self" title="SEMI_AF1:def.5">Def5</a></span>;<br/>
<a NAME="E4:118"/><span class="kw">then </span>
 <a href="semi_af1.html#R3" title="SEMI_AF1:pred.3">congr</a> <font color="Maroon" title="c2">o</font>, <a href="semi_af1.html#K2" title="SEMI_AF1:func.2">opposite</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c3">b</font>, <a href="semi_af1.html#K3" title="SEMI_AF1:func.3">diff</a> <font color="Maroon" title="c3">b</font>,<font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font>
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="semi_af1.html#T89" target="_self" title="SEMI_AF1:th.89">Th89</a></span>;<br/>
<a NAME="E5:118"/><span class="kw">then </span>
 <a href="semi_af1.html#R3" title="SEMI_AF1:pred.3">congr</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c3">b</font>, <a href="semi_af1.html#K3" title="SEMI_AF1:func.3">diff</a> <font color="Maroon" title="c3">b</font>,<font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font>
 
<span class="kw">by</span> <span class="lab"><a class="txt" href="#E2:118"><span class="lab"><font color="Green" title="E74">A1</font></span></a>, <a class="ref" href="semi_af1.html#T85" target="_self" title="SEMI_AF1:th.85">Th85</a></span>;<br/>
<a NAME="E6:118"/><span class="kw">then </span>
 <a href="semi_af1.html#R3" title="SEMI_AF1:pred.3">congr</a> <font color="Maroon" title="c2">o</font>, <a href="semi_af1.html#K3" title="SEMI_AF1:func.3">diff</a> <font color="Maroon" title="c3">b</font>,<font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c3">b</font>
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="semi_af1.html#T89" target="_self" title="SEMI_AF1:th.89">Th89</a></span>;<br/>
<span class="kw">hence </span><a NAME="E7:118"/>
<font color="Maroon" title="c2">o</font>, <a href="semi_af1.html#K3" title="SEMI_AF1:func.3">diff</a> <font color="Maroon" title="c3">b</font>,<font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c2">o</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c4">a</font>,<font color="Maroon" title="c3">b</font>
 <span class="kw">by</span> <span class="lab"><a class="ref" href="semi_af1.html#T76" target="_self" title="SEMI_AF1:th.76">Th76</a></span>; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


</div>
