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Theorem is_unit.neg

Modification history

2022-11-13 23:50
src/algebra/ring/basic.lean
refactor(data/int/basic): move material about units to new file (#17508)
Modified is_unit.negView on Github →
2022-10-15 13:04
src/algebra/ring/basic.lean
feat(algebra/ring): mark a useful lemma simp and generalize unit neg lemmas (#16993) …
Modified is_unit.negView on Github →
2021-04-07 10:30
src/algebra/ring/basic.lean
feat(data/int/basic algebra/associated): is_unit (a : ℤ) iff a = ±1 (#7058) …
Added is_unit.negView on Github →