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Theorem is_square.mul_is_square

Modification history

2022-05-17 21:17
src/algebra/parity.lean
refactor(algebra/parity): Generalize to division monoids (#14187) …
Deleted is_square.mul_is_squareView on Github →
2022-04-06 12:59
src/algebra/parity.lean
feat(algebra/parity): introduce `is_square` and, via `to_additive`, also `even` (#13037) …
Added is_square.mul_is_squareView on Github →