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Def even

Modification history

2022-04-06 12:59
src/algebra/parity.lean
feat(algebra/parity): introduce `is_square` and, via `to_additive`, also `even` (#13037) …
Deleted evenView on Github →
2022-03-28 16:49
src/algebra/parity.lean
refactor(algebra/group/to_additive + files containing even/odd): move many lemmas involving even/odd to the same file (#12882) …
Modified evenView on Github →
2020-10-06 12:41
src/algebra/ring/basic.lean
chore(parity): even and odd in semiring (#4473) …
Added evenView on Github →