| Display title | Bachmann–Howard ordinal |
| Default sort key | Bachmann-Howard ordinal |
| Page length (in bytes) | 3,922 |
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| Page ID | 208874 |
| Page content language | en - English |
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| Page creator | imported>John Stpola |
| Date of page creation | 18:40, 6 February 2024 |
| Latest editor | imported>John Stpola |
| Date of latest edit | 18:40, 6 February 2024 |
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Description | Content |
Article description: (description) This attribute controls the content of the description and og:description elements. | In mathematics, the Bachmann–Howard ordinal (also known as the Howard ordinal, or Howard-Bachmann ordinal) is a large countable ordinal.
It is the proof-theoretic ordinal of several mathematical theories, such as Kripke–Platek set theory (with the axiom of infinity) and the system CZF of constructive... |