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v3
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Theorem
nonpos_of_mul_nonneg_left
Modification history
2020-05-18 13:38
src/algebra/ordered_ring.lean
refactor(algebra): merge init_.algebra into algebra (#2707) …
Modified
nonpos_of_mul_nonneg_left
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2019-08-12 10:14
src/algebra/ordered_ring.lean
feat(algebra/ordered_ring): pos_of_mul_neg_left and similar (#1313)
Added
nonpos_of_mul_nonneg_left
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