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Theorem add_neg_of_neg_of_nonpos'

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_neg_of_neg_of_nonpos'View on Github →
2017-11-30 22:10
algebra/ordered_group.lean
refactor(data/multiset): move multiset, finset, ordered_monoid
Modified add_neg_of_neg_of_nonpos'View on Github →
2017-09-05 19:24
algebra/ordered_monoid.lean
feat(algebra): add ordered (non-cancellative) additive monoid; use for sum-big operator
Added add_neg_of_neg_of_nonpos'View on Github →