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<b>let </b><font color="Maroon" title="c1">seq</font>, <font color="Maroon" title="c2">seq1</font> be   <a href="seq_1.html#NM1" title="SEQ_1:NM.1">Real_Sequence</a>;<br/>



<b>assume </b><b>that </b><br/><a NAME="E1:68"/><i><font color="Green" title="E37">A1</font></i>: 
<font color="Maroon" title="c1">seq</font> is <a href="relat_1.html#V2" title="RELAT_1:attr.2">being_not_0</a>
 <b>and </b><br/><a NAME="E2:68"/><i><font color="Green" title="E38">A2</font></i>: 
<font color="Maroon" title="c2">seq1</font> is <a href="relat_1.html#V2" title="RELAT_1:attr.2">being_not_0</a>
 ;<br/>

<a NAME="E3:68"/>
<font color="Maroon" title="c2">seq1</font> <a href="seq_1.html#K18" title="SEQ_1:func.18">"</a>  is <a href="relat_1.html#V2" title="RELAT_1:attr.2">being_not_0</a>
 
<b>by </b><i><a class="txt" href="seq_1.html#E2:68"><i><font color="Green" title="E38">A2</font></i></a>, <a class="ref" href="seq_1.html#T41" target="_self" title="SEQ_1:th.41">Th41</a></i>;<br/>
<a NAME="E4:68"/><b>then </b>
<font color="Maroon" title="c1">seq</font> <a href="seq_1.html#K11" title="SEQ_1:func.11">(#)</a> <span class="p1">(<span class="default"><font color="Maroon" title="c2">seq1</font> <a href="seq_1.html#K18" title="SEQ_1:func.18">"</a> </span>)</span> is <a href="relat_1.html#V2" title="RELAT_1:attr.2">being_not_0</a>
 
<b>by </b><i><a class="txt" href="seq_1.html#E1:68"><i><font color="Green" title="E37">A1</font></i></a>, <a class="ref" href="seq_1.html#T43" target="_self" title="SEQ_1:th.43">Th43</a></i>;<br/>
<b>hence </b><a NAME="E5:68"/>
<font color="Maroon" title="c1">seq</font> <a href="seq_1.html#K19" title="SEQ_1:func.19">/"</a> <font color="Maroon" title="c2">seq1</font> is <a href="relat_1.html#V2" title="RELAT_1:attr.2">being_not_0</a>
 ;<br/>


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