[GHC] #13337: GHC doesn't think a type is of kind *, despite having evidence for it

[GHC]

#13337: GHC doesn't think a type is of kind *, despite having evidence for it
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        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.0.2
  checker)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by goldfire):

 Theorem (Progress): For all research projects ρ, either ρ is published, or
 there exists a day δ such that ρ steps to ρ'.

 Proof: Fix a given research project ρ. We now have two cases: either ρ is
 published, which trivially implies progress; or we must produce a day δ in
 which ρ will advance. We are done, choosing δ = tomorrow.
 QED.

 So, yes, Dependent Haskell is in progress. And, yes, I agree with your
 other analysis in comment:5.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13337#comment:6>
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