Theorem Ordinal.add_one_ne_zero

Modification history

2026-10-16 07:34
Mathlib/SetTheory/Ordinal/Basic.lean
chore: remove declarations deprecated between 2026-04-01 and 2026-04-15 (#44903) …
Deleted Ordinal.add_one_ne_zeroView on Github →
2026-02-27 02:54
Mathlib/SetTheory/Ordinal/Basic.lean
refactor: make `Order.succ_eq_add_one` a `simp` lemma (#35741) …
Added Ordinal.add_one_ne_zeroView on Github →