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[ https://prime.haskell.org/wiki/Libraries/Proposals/SemigroupMonoid](https://prime.haskell.org/wiki/Libraries/Proposals/SemigroupMonoid)
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[https://prime.haskell.org/wiki/Libraries/Proposals/SemigroupMonoid](https://prime.haskell.org/wiki/Libraries/Proposals/SemigroupMonoid)
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