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<span class="kw">consider </span><font color="Maroon" title="c1">x</font> being    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="zf_lang.html#K9" title="ZF_LANG:func.9">WFF</a> ;<br/>
<span class="kw">reconsider </span><font color="Maroon" title="c2">x</font> = <font color="Maroon" title="c1">x</font> as    <a href="finseq_1.html#M2" title="FINSEQ_1:mode.2">FinSequence</a> of  <a href="numbers.html#K5" title="NUMBERS:func.5">NAT</a>  <span class="kw">by</span> <span class="lab"><a class="ref" href="zf_lang.html#D8" target="_self" title="ZF_LANG:def.8">Def8</a></span>;<br/>
<span class="kw">take </span>
<font color="Maroon" title="c2">x</font>
; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> <font color="Maroon" title="c2">x</font> is  <a href="zf_lang.html#V1" title="ZF_LANG:attr.1">ZF-formula-like</a> </span><br/>

<span class="kw">thus </span><a NAME="E3:23_1_1"/>
<font color="Maroon" title="c2">x</font> is    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="zf_lang.html#K9" title="ZF_LANG:func.9">WFF</a> 
 ; <span class="comment"><font color="Red">:: according to </font></span><a class="ref" href="zf_lang.html#D9" target="_self" title="ZF_LANG:def.9">ZF_LANG:def 9</a> <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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