Theorem Cardinal.isRegular_aleph_succ

Modification history

2026-03-30 08:57
Mathlib/SetTheory/Cardinal/Regular.lean
feat: cof (ω_ (o + 1)) = ℵ_ (o + 1) (#37020)
Modified Cardinal.isRegular_aleph_succView on Github →
2025-03-11 00:25
Mathlib/SetTheory/Cardinal/Cofinality.lean
chore(SetTheory/Cardinal/Cofinality): split file (#21972) …
Modified Cardinal.isRegular_aleph_succView on Github →
2024-10-22 15:31
Mathlib/SetTheory/Cardinal/Cofinality.lean
chore: use new `ℵ_` and `ℶ_` notation (#18066)
Modified Cardinal.isRegular_aleph_succView on Github →
2023-02-24 13:27
Mathlib/SetTheory/Cardinal/Cofinality.lean
feat port: SetTheory.Cardinal.Cofinality (#2479)
Added Cardinal.isRegular_aleph_succView on Github →