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

<a NAME="E1:27"/>
6 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 2 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 3
 
;<br/>
<a NAME="E2:27"/><span class="kw">then </span>
2 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 6
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E3:27"/>
 not 6 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 8 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 9 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 10 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 12 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 14 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 15 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 16 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 18 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 20 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 21 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 22 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E4:27"/>
8 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 2 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 4
 
;<br/>
<a NAME="E5:27"/><span class="kw">then </span>
2 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 8
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E6:27"/>
 not 8 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 9 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 10 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 12 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 14 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 15 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 16 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 18 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 20 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 21 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 22 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E7:27"/>
9 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 3 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 3
 
;<br/>
<a NAME="E8:27"/><span class="kw">then </span>
3 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 9
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E9:27"/>
 not 9 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 10 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 12 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 14 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 15 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 16 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 18 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 20 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 21 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 22 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E10:27"/>
10 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 2 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 5
 
;<br/>
<a NAME="E11:27"/><span class="kw">then </span>
2 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 10
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E12:27"/>
 not 10 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 12 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 14 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 15 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 16 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 18 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 20 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 21 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 22 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E13:27"/>
12 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 2 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 6
 
;<br/>
<a NAME="E14:27"/><span class="kw">then </span>
2 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 12
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E15:27"/>
 not 12 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 14 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 15 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 16 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 18 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 20 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 21 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 22 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E16:27"/>
14 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 2 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 7
 
;<br/>
<a NAME="E17:27"/><span class="kw">then </span>
2 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 14
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E18:27"/>
 not 14 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 15 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 16 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 18 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 20 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 21 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 22 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E19:27"/>
15 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 3 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 5
 
;<br/>
<a NAME="E20:27"/><span class="kw">then </span>
3 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 15
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E21:27"/>
 not 15 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 16 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 18 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 20 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 21 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 22 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E22:27"/>
16 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 4 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 4
 
;<br/>
<a NAME="E23:27"/><span class="kw">then </span>
4 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 16
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E24:27"/>
 not 16 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 18 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 20 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 21 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 22 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E25:27"/>
18 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 2 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 9
 
;<br/>
<a NAME="E26:27"/><span class="kw">then </span>
2 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 18
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E27:27"/>
 not 18 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 20 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 21 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 22 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E28:27"/>
20 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 4 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 5
 
;<br/>
<a NAME="E29:27"/><span class="kw">then </span>
4 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 20
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E30:27"/>
 not 20 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 21 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 22 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E31:27"/>
21 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 3 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 7
 
;<br/>
<a NAME="E32:27"/><span class="kw">then </span>
3 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 21
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E33:27"/>
 not 21 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 22 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E34:27"/>
22 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 2 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 11
 
;<br/>
<a NAME="E35:27"/><span class="kw">then </span>
2 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 22
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E36:27"/>
 not 22 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E37:27"/>
24 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 4 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 6
 
;<br/>
<a NAME="E38:27"/><span class="kw">then </span>
4 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 24
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E39:27"/>
 not 24 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E40:27"/>
25 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 5 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 5
 
;<br/>
<a NAME="E41:27"/><span class="kw">then </span>
5 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 25
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E42:27"/>
 not 25 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E43:27"/>
26 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 2 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 13
 
;<br/>
<a NAME="E44:27"/><span class="kw">then </span>
2 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 26
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E45:27"/>
 not 26 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> (  not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp;  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  )</span><br/>

<a NAME="E46:27"/>
27 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 3 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 9
 
;<br/>
<a NAME="E47:27"/><span class="kw">then </span>
3 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 27
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E48:27"/>
 not 27 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide">  not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> </span><br/>

<a NAME="E49:27"/>
28 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 4 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> 7
 
;<br/>
<a NAME="E50:27"/><span class="kw">then </span>
4 <a href="nat_d.html#R1" title="NAT_D:pred.1">divides</a> 28
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="nat_d.html#D3" onmouseover="rs('nat_d/D3')" onmouseout="rh()">NAT_D:def 3</a></span>;<br/>
<span class="kw">hence </span><a NAME="E51:27"/>
 not 28 is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="int_2.html#D4" onmouseover="rs('int_2/D4')" onmouseout="rh()">INT_2:def 4</a></span>; <a class="txt" onmouseover="tooltip.show('hs',this)" onmouseout="tooltip.hide()" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


</div>
