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    Answers and rating deltas for
    How to have a type with indexable but optional elements requiring one to exist in Haskell
| Author | Votes | Δ | 
|---|---|---|
| sclv | 2 | +0.70 | 
| Ed'ka | 2 | +3.14 | 
| Thomas M. DuBuisson | 1 | -0.35 | 
| dvitek | 1 | +0.05 | 
| stephen tetley | 0 | -3.18 | 
| Dan Burton | 0 | -2.82 | 
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