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<span class="kw">let </span><font color="Maroon" title="c1">PTN</font> be   <a href="petri.html#NM2" title="PETRI:NM.2">Petri_net</a>; <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">  for <font color="Olive" title="b1">S0</font> being   <a href="subset_1.html#NM2" title="SUBSET_1:NM.2">Subset</a> of  the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <font color="Maroon" title="c1">PTN</font> holds   <a href="petri.html#K6" title="PETRI:func.6">*'</a> <font color="Olive" title="b1">S0</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"> { <span class="default"> <span class="p2">(<span class="default"><font color="Olive" title="b2">f</font> <a href="petri.html#K4" title="PETRI:func.4">`1</a></span>)</span> where <font color="Olive" title="b2">f</font> is   <a href="petri.html#NM8" title="PETRI:NM.8">T-S_arc</a> of <font color="Maroon" title="c1">PTN</font> : <font color="Olive" title="b2">f</font> <a href="petri.html#K5" title="PETRI:func.5">`2</a>  <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Olive" title="b1">S0</font> </span> } </span> </span><br/><span class="kw">let </span><font color="Maroon" title="c2">S0</font> be   <a href="subset_1.html#NM2" title="SUBSET_1:NM.2">Subset</a> of  the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <font color="Maroon" title="c1">PTN</font>; <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">  <a href="petri.html#K6" title="PETRI:func.6">*'</a> <font color="Maroon" title="c2">S0</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"> { <span class="default"> <span class="p2">(<span class="default"><font color="Olive" title="b1">f</font> <a href="petri.html#K4" title="PETRI:func.4">`1</a></span>)</span> where <font color="Olive" title="b1">f</font> is   <a href="petri.html#NM8" title="PETRI:NM.8">T-S_arc</a> of <font color="Maroon" title="c1">PTN</font> : <font color="Olive" title="b1">f</font> <a href="petri.html#K5" title="PETRI:func.5">`2</a>  <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Maroon" title="c2">S0</font> </span> } </span> </span><br/>



<span class="kw">thus </span><a NAME="E1:14"/>
 <a href="petri.html#K6" title="PETRI:func.6">*'</a> <font color="Maroon" title="c2">S0</font> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a> <span class="p1"> { <span class="default"> <span class="p2">(<span class="default"><font color="Olive" title="b1">f</font> <a href="petri.html#K4" title="PETRI:func.4">`1</a></span>)</span> where <font color="Olive" title="b1">f</font> is   <a href="petri.html#NM8" title="PETRI:NM.8">T-S_arc</a> of <font color="Maroon" title="c1">PTN</font> : <font color="Olive" title="b1">f</font> <a href="petri.html#K5" title="PETRI:func.5">`2</a>  <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Maroon" title="c2">S0</font> </span> } </span> 
  <span class="comment"><font color="firebrick">:: according to </font></span><a class="ref" href="xboole_0.html#D10" onmouseover="rs('xboole_0/D10')" onmouseout="rh()">XBOOLE_0:def 10</a> <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"> <span class="p1"> { <span class="default"> <span class="p2">(<span class="default"><font color="Olive" title="b1">f</font> <a href="petri.html#K4" title="PETRI:func.4">`1</a></span>)</span> where <font color="Olive" title="b1">f</font> is   <a href="petri.html#NM8" title="PETRI:NM.8">T-S_arc</a> of <font color="Maroon" title="c1">PTN</font> : <font color="Olive" title="b1">f</font> <a href="petri.html#K5" title="PETRI:func.5">`2</a>  <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Maroon" title="c2">S0</font> </span> } </span>  <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a>  <a href="petri.html#K6" title="PETRI:func.6">*'</a> <font color="Maroon" title="c2">S0</font></span><div><a class="txt" onmouseover="tooltip.show('hs2',this)" onmouseout="tooltip.hide()" onclick="hs2(this)" href="javascript:()" title="14_1"><span class="kw">proof </span></a><div class="add">

<span class="kw">let </span><font color="Maroon" title="c3">x</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">object</a> ; <span class="comment"><font color="firebrick">:: according to </font></span><a class="ref" href="tarski.html#D3" onmouseover="rs('tarski/D3')" onmouseout="rh()">TARSKI:def 3</a> <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 <font color="Maroon" title="c3">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="petri.html#K6" title="PETRI:func.6">*'</a> <font color="Maroon" title="c2">S0</font> or <font color="Maroon" title="c3">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <span class="p1"> { <span class="default"> <span class="p2">(<span class="default"><font color="Olive" title="b1">f</font> <a href="petri.html#K4" title="PETRI:func.4">`1</a></span>)</span> where <font color="Olive" title="b1">f</font> is   <a href="petri.html#NM8" title="PETRI:NM.8">T-S_arc</a> of <font color="Maroon" title="c1">PTN</font> : <font color="Olive" title="b1">f</font> <a href="petri.html#K5" title="PETRI:func.5">`2</a>  <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Maroon" title="c2">S0</font> </span> } </span>  )</span><br/>

<span class="kw">assume </span><a NAME="E1:14_1"/>
<font color="Maroon" title="c3">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="petri.html#K6" title="PETRI:func.6">*'</a> <font color="Maroon" title="c2">S0</font>
 ; <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"> <font color="Maroon" title="c3">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <span class="p1"> { <span class="default"> <span class="p2">(<span class="default"><font color="Olive" title="b1">f</font> <a href="petri.html#K4" title="PETRI:func.4">`1</a></span>)</span> where <font color="Olive" title="b1">f</font> is   <a href="petri.html#NM8" title="PETRI:NM.8">T-S_arc</a> of <font color="Maroon" title="c1">PTN</font> : <font color="Olive" title="b1">f</font> <a href="petri.html#K5" title="PETRI:func.5">`2</a>  <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Maroon" title="c2">S0</font> </span> } </span> </span><br/>

<span class="kw">then </span><span class="kw">consider </span><font color="Maroon" title="c4">t</font> being   <a href="petri.html#NM5" title="PETRI:NM.5">transition</a> of <font color="Maroon" title="c1">PTN</font><span class="kw"> such that </span><br/><a NAME="E3:14_1"/><span class="lab"><font color="Green" title="E3">A1</font></span>: 
<font color="Maroon" title="c3">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c4">t</font>
 <span class="kw">and </span><br/><a NAME="E4:14_1"/><span class="lab"><font color="Green" title="E4">A2</font></span>: 
 ex <font color="Olive" title="b1">f</font> being   <a href="petri.html#NM8" title="PETRI:NM.8">T-S_arc</a> of <font color="Maroon" title="c1">PTN</font> ex <font color="Olive" title="b2">s</font> being   <a href="petri.html#NM3" title="PETRI:NM.3">place</a> of <font color="Maroon" title="c1">PTN</font> st <br/>( <font color="Olive" title="b2">s</font> <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Maroon" title="c2">S0</font> &amp; <font color="Olive" title="b1">f</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="domain_1.html#K1" title="DOMAIN_1:func.1">[</a><span class="default"><font color="Maroon" title="c4">t</font>,<font color="Olive" title="b2">s</font></span><a href="domain_1.html#K1" title="DOMAIN_1:func.1">]</a></span> )
 ;<br/>
<span class="kw">consider </span><font color="Maroon" title="c5">f</font> being   <a href="petri.html#NM8" title="PETRI:NM.8">T-S_arc</a> of <font color="Maroon" title="c1">PTN</font>, <font color="Maroon" title="c6">s</font> being   <a href="petri.html#NM3" title="PETRI:NM.3">place</a> of <font color="Maroon" title="c1">PTN</font><span class="kw"> such that </span><br/><a NAME="E6:14_1"/><span class="lab"><font color="Green" title="E5">A3</font></span>: 
<font color="Maroon" title="c6">s</font> <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Maroon" title="c2">S0</font>
 <span class="kw">and </span><br/><a NAME="E7:14_1"/><span class="lab"><font color="Green" title="E6">A4</font></span>: 
<font color="Maroon" title="c5">f</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="domain_1.html#K1" title="DOMAIN_1:func.1">[</a><span class="default"><font color="Maroon" title="c4">t</font>,<font color="Maroon" title="c6">s</font></span><a href="domain_1.html#K1" title="DOMAIN_1:func.1">]</a></span>
 <span class="kw">by</span> <span class="lab"><a class="txt" href="#E4:14_1"><span class="lab"><font color="Green" title="E4">A2</font></span></a></span>;<br/>
<a NAME="E8:14_1"/>
( <font color="Maroon" title="c5">f</font> <a href="petri.html#K4" title="PETRI:func.4">`1</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c4">t</font> &amp; <font color="Maroon" title="c5">f</font> <a href="petri.html#K5" title="PETRI:func.5">`2</a>  <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c6">s</font> )
 
<span class="kw">by</span> <span class="lab"><a class="txt" href="#E7:14_1"><span class="lab"><font color="Green" title="E6">A4</font></span></a></span>;<br/>
<span class="kw">hence </span><a NAME="E9:14_1"/>
<font color="Maroon" title="c3">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <span class="p1"> { <span class="default"> <span class="p2">(<span class="default"><font color="Olive" title="b1">f</font> <a href="petri.html#K4" title="PETRI:func.4">`1</a></span>)</span> where <font color="Olive" title="b1">f</font> is   <a href="petri.html#NM8" title="PETRI:NM.8">T-S_arc</a> of <font color="Maroon" title="c1">PTN</font> : <font color="Olive" title="b1">f</font> <a href="petri.html#K5" title="PETRI:func.5">`2</a>  <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Maroon" title="c2">S0</font> </span> } </span> 
 <span class="kw">by</span> <span class="lab"><a class="txt" href="#E3:14_1"><span class="lab"><font color="Green" title="E3">A1</font></span></a>, <a class="txt" href="#E6:14_1"><span class="lab"><font color="Green" title="E5">A3</font></span></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><span class="kw">end;</span></div>

<span class="kw">let </span><font color="Maroon" title="c3">x</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">object</a> ; <span class="comment"><font color="firebrick">:: according to </font></span><a class="ref" href="tarski.html#D3" onmouseover="rs('tarski/D3')" onmouseout="rh()">TARSKI:def 3</a> <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 <font color="Maroon" title="c3">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <span class="p1"> { <span class="default"> <span class="p2">(<span class="default"><font color="Olive" title="b1">f</font> <a href="petri.html#K4" title="PETRI:func.4">`1</a></span>)</span> where <font color="Olive" title="b1">f</font> is   <a href="petri.html#NM8" title="PETRI:NM.8">T-S_arc</a> of <font color="Maroon" title="c1">PTN</font> : <font color="Olive" title="b1">f</font> <a href="petri.html#K5" title="PETRI:func.5">`2</a>  <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Maroon" title="c2">S0</font> </span> } </span>  or <font color="Maroon" title="c3">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="petri.html#K6" title="PETRI:func.6">*'</a> <font color="Maroon" title="c2">S0</font> )</span><br/>

<span class="kw">assume </span><a NAME="E2:14"/>
<font color="Maroon" title="c3">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <span class="p1"> { <span class="default"> <span class="p2">(<span class="default"><font color="Olive" title="b1">f</font> <a href="petri.html#K4" title="PETRI:func.4">`1</a></span>)</span> where <font color="Olive" title="b1">f</font> is   <a href="petri.html#NM8" title="PETRI:NM.8">T-S_arc</a> of <font color="Maroon" title="c1">PTN</font> : <font color="Olive" title="b1">f</font> <a href="petri.html#K5" title="PETRI:func.5">`2</a>  <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Maroon" title="c2">S0</font> </span> } </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"> <font color="Maroon" title="c3">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="petri.html#K6" title="PETRI:func.6">*'</a> <font color="Maroon" title="c2">S0</font></span><br/>

<span class="kw">then </span><span class="kw">consider </span><font color="Maroon" title="c4">f</font> being   <a href="petri.html#NM8" title="PETRI:NM.8">T-S_arc</a> of <font color="Maroon" title="c1">PTN</font><span class="kw"> such that </span><br/><a NAME="E4:14"/><span class="lab"><font color="Green" title="E3">A5</font></span>: 
( <font color="Maroon" title="c3">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c4">f</font> <a href="petri.html#K4" title="PETRI:func.4">`1</a>  &amp; <font color="Maroon" title="c4">f</font> <a href="petri.html#K5" title="PETRI:func.5">`2</a>  <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Maroon" title="c2">S0</font> )
 ;<br/>
<a NAME="E5:14"/>
<font color="Maroon" title="c4">f</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="domain_1.html#K1" title="DOMAIN_1:func.1">[</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon" title="c4">f</font> <a href="petri.html#K4" title="PETRI:func.4">`1</a></span>)</span>,<span class="p2">(<span class="default"><font color="Maroon" title="c4">f</font> <a href="petri.html#K5" title="PETRI:func.5">`2</a></span>)</span></span><a href="domain_1.html#K1" title="DOMAIN_1:func.1">]</a></span>
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="mcart_1.html#T21" onmouseover="rs('mcart_1/T21')" onmouseout="rh()">MCART_1:21</a></span>;<br/>
<span class="kw">hence </span><a NAME="E6:14"/>
<font color="Maroon" title="c3">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="petri.html#K6" title="PETRI:func.6">*'</a> <font color="Maroon" title="c2">S0</font>
 <span class="kw">by</span> <span class="lab"><a class="txt" href="#E4:14"><span class="lab"><font color="Green" title="E3">A5</font></span></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>
