Question: Please help with this Haskell permutations function (not allowed to use built-in method). I read delete requires import Data.List all_permutations:: [a] -[[a]] all permutations []

Please help with this Haskell permutations function (not allowed to use built-in method). I read delete requires "import Data.List"

Please help with this Haskell permutations function (not allowed to use built-in method). I read delete requires "import Data.List" all_permutations:: [a] -[[a]] all permutations

all_permutations:: [a] -[[a]] all permutations [] [ [ ] ] all permutations xs [x:ys | x

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