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<b>let </b><font color="Maroon">p1</font> be   <a href="zf_lang.html#NM2">ZF-formula</a>;<br/><b>let </b><font color="Maroon">p2</font> be   <a href="zf_lang.html#NM2">ZF-formula</a>;<br/><b>let </b><font color="Maroon">x1</font> be   <a href="zf_lang.html#NM1">Variable</a>;<br/><b>let </b><font color="Maroon">y1</font> be   <a href="zf_lang.html#NM1">Variable</a>;<br/><b>let </b><font color="Maroon">z1</font> be   <a href="zf_lang.html#NM1">Variable</a>;<br/><b>let </b><font color="Maroon">x2</font> be   <a href="zf_lang.html#NM1">Variable</a>;<br/><b>let </b><font color="Maroon">y2</font> be   <a href="zf_lang.html#NM1">Variable</a>;<br/><b>let </b><font color="Maroon">z2</font> be   <a href="zf_lang.html#NM1">Variable</a>;<br/>















<b>assume </b><a NAME="E1:11"/><i><font color="Green">E46</font></i>: 
 <a href="zf_lang.html#K16">All</a> <font color="Maroon">x1</font>,<font color="Maroon">y1</font>,<font color="Maroon">z1</font>,<font color="Maroon">p1</font> <a href="hidden.html#R1">=</a>  <a href="zf_lang.html#K16">All</a> <font color="Maroon">x2</font>,<font color="Maroon">y2</font>,<font color="Maroon">z2</font>,<font color="Maroon">p2</font>
 ;<br/>

<a NAME="E2:11"/>
( <font color="Maroon">x1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">x2</font> &amp;  <a href="zf_lang.html#K14">All</a> <font color="Maroon">y1</font>,<font color="Maroon">z1</font>,<font color="Maroon">p1</font> <a href="hidden.html#R1">=</a>  <a href="zf_lang.html#K14">All</a> <font color="Maroon">y2</font>,<font color="Maroon">z2</font>,<font color="Maroon">p2</font> )
 
<b>by </b><i>, <a class="ref" href="zf_lang.html#T12">ZF_LANG:12</a></i>;<br/>
<b>hence </b><a NAME="E3:11"/>
( <font color="Maroon">x1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">x2</font> &amp; <font color="Maroon">y1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">y2</font> &amp; <font color="Maroon">z1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">z2</font> &amp; <font color="Maroon">p1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">p2</font> )
 <b>by </b><i/>;<br/>


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