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Def invertible_neg

Modification history

2022-04-10 23:04
src/algebra/invertible.lean
chore(algebra/invertible): generalise typeclasses (#13275)
Modified invertible_negView on Github →
2020-04-24 04:03
src/algebra/invertible.lean
feat(algebra): define `invertible` typeclass (#2504) …
Added invertible_negView on Github →