#10805: Could not deduce (a ~ b) implies (f a ~ f b), because a type function may not be injective -------------------------------------+------------------------------------- Reporter: htebalaka | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler (Type | Version: 7.10.2 checker) | Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by simonpj): Yes, it works fine in HEAD... I checked. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10805#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler