Commit 2022-04-16 17:33 91a43e71
View on Github →feat(algebra/order/monoid): Co/contravariant classes for with_bot/with_top (#13369)
Add the covariant_class (with_bot α) (with_bot α) (+) (≤) and contravariant_class (with_bot α) (with_bot α) (+) (<) instances, as well as the lemmas that covariant_class (with_bot α) (with_bot α) (+) (<) and contravariant_class (with_bot α) (with_bot α) (+) (≤) almost hold.
On the way, match the APIs for with_bot/with_top by adding missing lemmas.