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<b>let </b><font color="Maroon">M1</font> be    <a href="pnproc_1.html#M1" target="_self">marking</a> of <font color="Maroon">P</font>, <font color="Maroon">M2</font> be    <a href="pnproc_1.html#M1" target="_self">marking</a> of <font color="Maroon">P</font>;<br/>

<b>assume </b><b>that </b><br/><a NAME="E1:31_1_2"/><i><font color="Green">E38</font></i>: 
for <font color="Olive">p</font> being   <a href="hidden.html#M1">set</a>   st <font color="Olive">p</font> <a href="hidden.html#R2">in</a> <font color="Maroon">P</font> holds <br/><font color="Maroon">M1</font> <a href="pnproc_1.html#K1" target="_self">multitude_of</a> <font color="Olive">p</font> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><font color="Maroon">m1</font> <a href="pnproc_1.html#K1" target="_self">multitude_of</a> <font color="Olive">p</font></span>)</span> <a href="xcmplx_0.html#K6">-</a> <span class="p1">(<span class="default"><font color="Maroon">m2</font> <a href="pnproc_1.html#K1" target="_self">multitude_of</a> <font color="Olive">p</font></span>)</span>
 <b>and </b><br/><a NAME="E2:31_1_2"/><i><font color="Green">E41</font></i>: 
for <font color="Olive">p</font> being   <a href="hidden.html#M1">set</a>   st <font color="Olive">p</font> <a href="hidden.html#R2">in</a> <font color="Maroon">P</font> holds <br/><font color="Maroon">M2</font> <a href="pnproc_1.html#K1" target="_self">multitude_of</a> <font color="Olive">p</font> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><font color="Maroon">m1</font> <a href="pnproc_1.html#K1" target="_self">multitude_of</a> <font color="Olive">p</font></span>)</span> <a href="xcmplx_0.html#K6">-</a> <span class="p1">(<span class="default"><font color="Maroon">m2</font> <a href="pnproc_1.html#K1" target="_self">multitude_of</a> <font color="Olive">p</font></span>)</span>
 ;<br/>

<b>let </b><font color="Maroon">p</font> be    <a href="hidden.html#M1">set</a> ; <i><font color="Red">:: according to </font></i><a class="ref" href="pnproc_1.html#D2" target="_self">PNPROC_1:def 2</a><br/>

<b>assume </b><a NAME="E3:31_1_2"/><i><font color="Green">E43</font></i>: 
<font color="Maroon">p</font> <a href="hidden.html#R2">in</a> <font color="Maroon">P</font>
 ;<br/>

<b>hence </b><font color="Maroon">M1</font> <a href="pnproc_1.html#K1" target="_self">multitude_of</a> <font color="Maroon">p</font> = 
<span class="p1">(<span class="default"><font color="Maroon">m1</font> <a href="pnproc_1.html#K1" target="_self">multitude_of</a> <font color="Maroon">p</font></span>)</span> <a href="xcmplx_0.html#K6">-</a> <span class="p1">(<span class="default"><font color="Maroon">m2</font> <a href="pnproc_1.html#K1" target="_self">multitude_of</a> <font color="Maroon">p</font></span>)</span>
<b>by </b><i/>
<br/>.= 
<font color="Maroon">M2</font> <a href="pnproc_1.html#K1" target="_self">multitude_of</a> <font color="Maroon">p</font>
<b>by </b><i>, </i>
;<br/><br/>


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