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<a NAME="E1:32_1_1"/>
ex <font color="Olive">b<sub>1</sub></font> being  <a href="nat_1.html#NM1">Nat</a>ex <font color="Olive">b<sub>2</sub></font> being  <a href="qc_lang1.html#NM6">QC-pred_symbol</a> of <font color="Olive">b<sub>1</sub></font>ex <font color="Olive">b<sub>3</sub></font> being   <a href="qc_lang1.html#M1" target="_self">QC-variable_list</a> of <font color="Olive">b<sub>1</sub></font> st <font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R1">=</a> <font color="Olive">b<sub>2</sub></font> <a href="qc_lang1.html#K9" target="_self">!</a> <font color="Olive">b<sub>3</sub></font>
 
<b>by </b><i><a class="txt" href="qc_lang1.html#E1:32"><i><font color="Green">E23</font></i></a>, <a class="ref" href="qc_lang1.html#D17" target="_self">Def17</a></i>;<br/>
<b>hence </b><a NAME="E2:32_1_1"/>
ex <font color="Olive">b<sub>1</sub></font> being  <a href="qc_lang1.html#NM2">QC-pred_symbol</a>ex <font color="Olive">b<sub>2</sub></font> being  <a href="nat_1.html#NM1">Nat</a>ex <font color="Olive">b<sub>3</sub></font> being   <a href="qc_lang1.html#M1" target="_self">QC-variable_list</a> of <font color="Olive">b<sub>2</sub></font>ex <font color="Olive">b<sub>4</sub></font> being  <a href="qc_lang1.html#NM6">QC-pred_symbol</a> of <font color="Olive">b<sub>2</sub></font> st <br/>( <font color="Olive">b<sub>1</sub></font> <a href="hidden.html#R1">=</a> <font color="Olive">b<sub>4</sub></font> &amp; <font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R1">=</a> <font color="Olive">b<sub>4</sub></font> <a href="qc_lang1.html#K9" target="_self">!</a> <font color="Olive">b<sub>3</sub></font> )
 ;<br/>


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