Mathlib Changelog
v4
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Commit
2023-09-04 13:18
fa813a8e
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feat(Int/Units): a few lemmas about ℤˣ (
#6933
)
Estimated changes
Modified
Mathlib/Data/Int/Units.lean
added
theorem
Int.neg_units_ne_self
added
theorem
Int.units_ne_iff_eq_neg
added
theorem
Int.units_ne_neg_self