This PR fixes the definition of `Min (Option α)`. This is a breaking change. This treats `none` as the least element, so `min none x = min x none = none` for all `x : Option α`. Prior to nightly-2025-02-27, we instead had `min none (some x) = min (some x) none = some x`. Also adds basic lemmas relating `min`, `max`, `≤` and `<` on `Option`. |
||
|---|---|---|
| .. | ||
| Attach.lean | ||
| Basic.lean | ||
| BasicAux.lean | ||
| Instances.lean | ||
| Lemmas.lean | ||
| List.lean | ||
| Monadic.lean | ||