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Theorem sq_eq_sq_iff_eq_or_eq_neg

Modification history

2022-07-01 08:11
src/algebra/group_power/basic.lean
refactor(algebra/group_power): split ring lemmas into a separate file (#15032) …
Modified sq_eq_sq_iff_eq_or_eq_negView on Github →
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) …
Added sq_eq_sq_iff_eq_or_eq_negView on Github →