mathlib3

7538f9b4 - feat(data/list/defs): map_with_prefix_suffix and map_with_complement (#10020)

feat(data/list/defs): map_with_prefix_suffix and map_with_complement (#10020) Adds two list definitions: one that will be useful to me, and a generalization which may be useful to @semorrison Co-authored-by: Rob Lewis <rob.y.lewis@gmail.com>