Theorem Ordinal.omega_pos

Modification history

2024-11-18 02:41

Mathlib/SetTheory/Cardinal/Aleph.lean

feat(SetTheory/Cardinal/Aleph): some lemmas on `omega` (#18542)

Modified Ordinal.omega_pos View on Github →

2023-02-16 08:59

Mathlib/SetTheory/Ordinal/Arithmetic.lean

feat: port SetTheory.Ordinal.Arithmetic (#2271)

Added Ordinal.omega_pos View on Github →