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<b>let </b><font color="Maroon" title="c1">F</font> be   <a href="algstr_3.html#NM2" title="ALGSTR_3:NM.2">Ternary-Field</a>;<br/><b>let </b><font color="Maroon" title="c2">a</font>, <font color="Maroon" title="c3">x</font>, <font color="Maroon" title="c4">b</font>, <font color="Maroon" title="c5">x'</font> be   <a href="algstr_3.html#NM1" title="ALGSTR_3:NM.1">Scalar</a> of <font color="Maroon" title="c1">F</font>;<br/>









<b>assume </b><a NAME="E1:26"/><i><font color="Green" title="E13">A1</font></i>: 
( <font color="Maroon" title="c2">a</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a>  <a href="struct_0.html#K4" title="STRUCT_0:func.4">0.</a> <font color="Maroon" title="c1">F</font> &amp;  <a href="algstr_3.html#K1" title="ALGSTR_3:func.1">Tern</a> <font color="Maroon" title="c3">x</font>,<font color="Maroon" title="c2">a</font>,<font color="Maroon" title="c4">b</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="algstr_3.html#K1" title="ALGSTR_3:func.1">Tern</a> <font color="Maroon" title="c5">x'</font>,<font color="Maroon" title="c2">a</font>,<font color="Maroon" title="c4">b</font> )
 ;<br/>

<a NAME="E2:26"/>
(  <a href="algstr_3.html#K1" title="ALGSTR_3:func.1">Tern</a> <font color="Maroon" title="c3">x</font>,<span class="p1">(<span class="default"><a href="struct_0.html#K4" title="STRUCT_0:func.4">0.</a> <font color="Maroon" title="c1">F</font></span>)</span>,<font color="Maroon" title="c4">b</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c4">b</font> &amp;  <a href="algstr_3.html#K1" title="ALGSTR_3:func.1">Tern</a> <font color="Maroon" title="c5">x'</font>,<span class="p1">(<span class="default"><a href="struct_0.html#K4" title="STRUCT_0:func.4">0.</a> <font color="Maroon" title="c1">F</font></span>)</span>,<font color="Maroon" title="c4">b</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c4">b</font> )
 
<b>by </b><i><a class="ref" href="algstr_3.html#D7" target="_self" title="ALGSTR_3:def.7">Def7</a></i>;<br/>
<b>hence </b><a NAME="E3:26"/>
<font color="Maroon" title="c3">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c5">x'</font>
 <b>by </b><i><a class="txt" href="algstr_3.html#E1:26"><i><font color="Green" title="E13">A1</font></i></a>, <a class="ref" href="algstr_3.html#D7" target="_self" title="ALGSTR_3:def.7">Def7</a></i>;<br/>


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