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Def neg_add_self

Modification history

2020-05-18 13:38

src/init_/algebra/group.lean

refactor(algebra): merge init_.algebra into algebra (#2707) …

Deleted neg_add_self View on Github →

2020-05-17 17:58

src/init_/algebra/group.lean

chore(*): bump to lean-3.13.1 (#2697) …

Added neg_add_self View on Github →