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Theorem add_eq_zero_iff'

Modification history

2020-06-09 17:36
src/algebra/ordered_group.lean
refactor(algebra/ordered_group): multiplicative versions of ordered monoids/groups (#2844) …
Deleted add_eq_zero_iff'View on Github →
2018-10-08 14:30
algebra/ordered_group.lean
refactor(*): touching up proofs from 'faster' branch
Added add_eq_zero_iff'View on Github →