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philipschwarz/List.map.u

Created May 1, 2020 14:29
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List.map.u
base.List.map : (a ->{๐•–} b) -> [a] ->{๐•–} [b]
base.List.map f a =
go i as acc =
match List.at i as with
None -> acc
Some a ->
use Nat +
go (i + 1) as (acc :+ f a)
go 0 a []
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