Theorem Ordinal.add_le_of_limit

Modification history

2024-12-10 16:18

Mathlib/SetTheory/Ordinal/Arithmetic.lean

feat(SetTheory/Ordinal/Arithmetic): `a + b ≤ c ↔ ∀ d < b, a + d < c` (#19804)

Deleted Ordinal.add_le_of_limit View on Github →

2023-02-16 08:59

Mathlib/SetTheory/Ordinal/Arithmetic.lean

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

Added Ordinal.add_le_of_limit View on Github →