Theorem Ordinal.add_sub_cancel

Modification history

2025-07-19 23:40
Mathlib/SetTheory/Ordinal/Arithmetic.lean
refactor(SetTheory/Ordinal/Arithmetic): redefine subtraction (#26889) …
Modified Ordinal.add_sub_cancelView on Github →
2023-02-16 08:59
Mathlib/SetTheory/Ordinal/Arithmetic.lean
feat: port SetTheory.Ordinal.Arithmetic (#2271)
Added Ordinal.add_sub_cancelView on Github →