Fixed-point lemma for normal functions: Difference between revisions

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Tiny grammar thing
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:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = sup {&alpha;<sub>''n''+1</sub> : ''n'' &lt; &omega;}
:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = &beta;
(The last step uses the fact that the sequence &lt;&alpha;<sub>''n''</sub>&gt; increases).
 
== Example application ==