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<span class="p1">(<span class="default">2 <a href="nat_1.html#K2" title="NAT_1:func.2">*</a> <a href="numbers.html#K5" title="NUMBERS:func.5">0</a></span>)</span> <a href="nat_1.html#K1" title="NAT_1:func.1">+</a> 1 is  <a href="abian.html#V1" title="ABIAN:attr.1">odd</a> 
 
;<br/>
<span class="kw">hence </span><a NAME="E2:10_2_1"/>
 for <font color="Olive">b<sub>1</sub></font> being   <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a>  st  not <font color="Olive">b<sub>1</sub></font> is  <a href="ordinal1.html#V8" title="ORDINAL1:attr.8">zero</a>  &amp; <font color="Olive">b<sub>1</sub></font> is  <a href="zfmisc_1.html#V1" title="ZFMISC_1:attr.1">trivial</a>  holds <br/><font color="Olive">b<sub>1</sub></font> is  <a href="abian.html#V1" title="ABIAN:attr.1">odd</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="nat_2.html#D1" onmouseover="rs('nat_2/D1')" onmouseout="rh()">NAT_2:def 1</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/>


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