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Theorem neg_iff_neg_of_mul_pos

Modification history

2022-09-14 18:51
src/algebra/order/monoid_lemmas_zero_lt.lean
refactor(algebra/order/monoid_lemma_zero_lt): Use `{x : α // 0 ≤ α}` (#16447) …
Added neg_iff_neg_of_mul_posView on Github →
2022-08-24 21:27
src/algebra/order/ring.lean
refactor(algebra/order/{monoid_lemmas_zero_lt + ring} + crumbs) remove duplicate lemmas (#16189) …
Deleted neg_iff_neg_of_mul_posView on Github →
2021-12-12 01:37
src/algebra/order/ring.lean
feat(algebra/order/ring): pos_iff_pos_of_mul_pos, neg_iff_neg_of_mul_pos (#10634) …
Added neg_iff_neg_of_mul_posView on Github →