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Theorem pgame.birthday_add_zero

Modification history

2022-10-03 17:40
src/set_theory/game/birthday.lean
feat(set_theory/game/birthday): birthday of addition equals natural addition of birthdays (#14549)
Modified pgame.birthday_add_zeroView on Github →
2022-05-04 15:53
src/set_theory/game/birthday.lean
feat(set_theory/game/birthday): More basic lemmas on birthdays (#13729)
Added pgame.birthday_add_zeroView on Github →