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Theorem four_ne_zero

Modification history

2022-11-17 07:53
src/algebra/ne_zero.lean
feat(algebra/ne_zero): generalize lemmas (#17477) …
Modified four_ne_zeroView on Github →
2022-10-08 09:14
src/algebra/order/ring.lean
feat(algebra/order/ring): Non-cancellative ordered semirings (#16172) …
Modified four_ne_zeroView on Github →
2022-02-20 14:25
src/algebra/order/ring.lean
feat(algebra/order/ring): add three_ne_zero and four_ne_zero (#12142)
Added four_ne_zeroView on Github →