Theorem PGame.neg_birthday

Modification history

2023-08-31 07:47
Mathlib/SetTheory/Game/Birthday.lean
chore: move `Game` to `SetTheory.Game` (#6365) …
Deleted PGame.neg_birthdayView on Github →
2023-06-28 10:21
Mathlib/SetTheory/Game/Birthday.lean
feat: port SetTheory.Game.Birthday (#5500)
Added PGame.neg_birthdayView on Github →