Theorem List.getD_eq_getD_getElem?

Modification history

2025-12-08 14:02
Mathlib/Data/List/GetD.lean
feat(Data/List/GetD): golf and add lemmas for `get` and `getElem?` (#30213)
Deleted List.getD_eq_getD_getElem?View on Github →
2025-02-21 10:58
Mathlib/Data/List/GetD.lean
chore: backport changes to `getElem` lemmas (#22146) …
Added List.getD_eq_getD_getElem?View on Github →