RE: Haskell report typo (bad law for readsPrec)

[Simon Peyton-Jones]

| Another simple alternative is to weaken the the equation by 
| replacing the variable r by the empty string: [Alternative B:]
| 
| ...
|    should be the case that
| 
|      fst (head (readsPrec d (showsPrec d x ""))) == x

Yes, I like this alternative too.  I'll implement it.

Thank you for spotting it.

Simon

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