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v3
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Theorem
is_unit.mul_left_eq_zero_iff_eq_zero
Modification history
2020-07-01 23:16
src/algebra/ring.lean
chore(algebra/*): deduplicate `*_with_zero`/`semiring`/`field` (#3259) …
Deleted
is_unit.mul_left_eq_zero_iff_eq_zero
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2020-05-14 15:22
src/algebra/ring.lean
chore(algebra/ring): lemmas about units in a semiring (#2680) …
Added
is_unit.mul_left_eq_zero_iff_eq_zero
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