Theorem SetTheory.PGame.birthday_add

Modification history

2026-02-20 00:22
Mathlib/SetTheory/Game/Birthday.lean
chore: remove deprecated material from CGT (#35550) …
Deleted SetTheory.PGame.birthday_addView on Github →
2025-01-12 21:12
Mathlib/SetTheory/Game/Birthday.lean
refactor(SetTheory/Ordinal/NaturalOps): redefine natural addition without `blsub` (#19236) …
Modified SetTheory.PGame.birthday_addView on Github →
2024-09-16 17:23
Mathlib/SetTheory/Game/Birthday.lean
feat(SetTheory/Game/Birthday): Define birthday of a game (#15716) …
Modified SetTheory.PGame.birthday_addView on Github →
2023-08-31 07:47
Mathlib/SetTheory/Game/Birthday.lean
chore: move `Game` to `SetTheory.Game` (#6365) …
Added SetTheory.PGame.birthday_addView on Github →