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Theorem
Ordinal.cof_omega
Modification history
2024-11-01 19:53
Mathlib/SetTheory/Cardinal/Cofinality.lean
feat(SetTheory/Cardinal/Aleph): simpler definition of `aleph` (#17674) …
Added
Ordinal.cof_omega
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2024-10-03 10:05
Mathlib/SetTheory/Cardinal/Cofinality.lean
refactor(SetTheory/Ordinal/Basic): deprecate Ordinal.omega in favor of Ordinal.omega0 (#17158) …
Deleted
Ordinal.cof_omega
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2023-02-24 13:27
Mathlib/SetTheory/Cardinal/Cofinality.lean
feat port: SetTheory.Cardinal.Cofinality (#2479)
Added
Ordinal.cof_omega
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