Top Answers

1. What is the effect of type synonyms on instances of type classes? What does the TypeSynonymInstances pragma in GHC do?
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2. Haskell Ambiguous Occurrences -- how to avoid?
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3. Are side-effects possible in pure functional programming
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4. Haskell shying away from probabilistic data structures?
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5. Haskell caching results of a function
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