mathlib

9da1b353 - feat(data/list/basic): missing lemmas about `list.enum` (#18489)

feat(data/list/basic): missing lemmas about `list.enum` (#18489) The primed versions of these lemmas are more convenient when inducting over the list argument. Forward-ported at https://github.com/leanprover-community/mathlib4/pull/2469.