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def internal_map_reverse_go

bend-mathlib@0.8.1.0 · list.bend:514

import bend-mathlib@0.8.1.0/list.bend as List
import Base

514def internal_map_reverse_go(~A: Type, ~B: Type, ~f: A -> B, xs: List<A>, acc: List<A>) -> {List.map(~A, ~B, ~f, List.reverse.go(&1, A, xs, acc)) == List.reverse.go(&1, B, List.map(~A, ~B, ~f, xs), List.map(~A, ~B, ~f, acc)) : List<B>}:
515  match xs:
516    case Nil{}:
517      {==}
518    case h <> t:
519      internal_map_reverse_go(~A, ~B, ~f, t, h <> acc)

Uses (3)

Used by (1)