Fixed-point lemma for normal functions: Difference between revisions

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Background and formal statement: sup {} = 0, but f(0) may not be 0
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| id = Available via [http://links.jstor.org/sici?sici=0002-9947%28190807%299%3A3%3C280%3ACIFOFA%3E2.0.CO%3B2-1 JSTOR].
| doi= 10.2307/1988605
| issue = 3}}
| url= http://jstor.org/stable/1988605
| publisher= American Mathematical Society}}
 
[[Category:Ordinal numbers]]