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1. What is "fix" in Haskell? And why does "fix error" print an infinite string? And why also "take 10 $ fix error" does the same too?
   2 votes
2. Why does eqT returning Maybe (a :~: b) work better than it returning Bool?
   2 votes
3. Select from subquery and join on subquery in Esqueleto
   1 votes