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Theorem units.eq_or_eq_neg_of_sq_eq_sq

Modification history

2022-05-31 20:07
src/algebra/group_power/basic.lean
feat(algebra/group_power/basic): `a^2 = b^2 ↔ a = b ∨ a = -b` (#14431) …
Deleted units.eq_or_eq_neg_of_sq_eq_sqView on Github →
2022-04-01 10:46
src/algebra/group_power/basic.lean
chore(algebra/group_power/basic): generalisation linter (#13095)
Modified units.eq_or_eq_neg_of_sq_eq_sqView on Github →
2022-02-10 13:11
src/algebra/group_power/basic.lean
feat(algebra/group_power/basic): add lemmas about pow and neg on units (#11447) …
Added units.eq_or_eq_neg_of_sq_eq_sqView on Github →