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Theorem neg_lt_neg_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 neg_lt_neg_iffView on Github →
2017-09-16 02:53
algebra/ordered_group.lean
feat(algebra): new algebra theorems (more iff)
Added neg_lt_neg_iffView on Github →