Proposition: Ordinals Are Downward Closeddeleteeditadd to favorites[id:727]vote: last edited 0 min ago by bookofproofs Let \(\beta\) be an ordinal number. Then each element \(\alpha\in\beta\) is also an ordinal number. References [656] Hoffmann, Dirk W.: “Grenzen der Mathematik - Eine Reise durch die Kerngebiete der mathematischen Logik”, Spektrum Akademischer Verlag, 2011 Contribute to BoP: add a new Proof add add a new Axiom add add a new Definition add add a new Motivation add add a new Example add add a new Application add add a new Explanation add add a new Interpretation add add a new Corollary add add a new Algorithm add add a new Open Problem add add a new Bibliography (Branch) add add a new Comment (Branch) add |
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