Theorem Cardinal.aleph'_zero

Modification history

2024-09-16 10:17

Mathlib/SetTheory/Cardinal/Ordinal.lean

refactor(SetTheory/Cardinal/Ordinal): make `Cardinal.aleph'` an order iso (#16220) …

Modified Cardinal.aleph'_zero View on Github →

2023-02-23 13:50

Mathlib/SetTheory/Cardinal/Ordinal.lean

feat: port SetTheory.Cardinal.Ordinal (#2463)

Added Cardinal.aleph'_zero View on Github →