Theorem not_injective_of_ordinal_of_small

Modification history

2025-08-22 21:50
Mathlib/SetTheory/Ordinal/Family.lean
chore: reprove `Ordinal.not_surjective_of_ordinal` without `Ordinal.lsub` (#28751) …
Deleted not_injective_of_ordinal_of_smallView on Github →
2025-03-18 10:08
Mathlib/SetTheory/Ordinal/Arithmetic.lean
chore(SetTheory): split `Ordinal/Arithmetic.lean` (#23017) …
Modified not_injective_of_ordinal_of_smallView on Github →
2023-02-16 08:59
Mathlib/SetTheory/Ordinal/Arithmetic.lean
feat: port SetTheory.Ordinal.Arithmetic (#2271)
Added not_injective_of_ordinal_of_smallView on Github →