#1496: Newtypes and type families combine to produce inconsistent FC(X) axiom
sets
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Reporter: sorear | Owner: simonpj
Type: bug | Status: new
Priority: normal | Milestone: 7.6.2
Component: Compiler (Type checker) | Version: 6.7
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: None/Unknown
Difficulty: Unknown | Testcase:
Blockedby: | Blocking: 5498
Related: |
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Comment(by simonpj):
See also [http://lukepalmer.wordpress.com/2013/03/04/how-gadts-inhibit-
abstraction/ How GADTs inhibit abstraction]. I have not studied it closely
but it's clearly relevant.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1496#comment:41>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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