#10227: Type checker cannot deduce type -------------------------------------+------------------------------------- Reporter: augustss | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by simonpj): True. Jan Stolarek's work on [https://ghc.haskell.org/trac/ghc/wiki/InjectiveTypeFamilies injective type families] is a start in that direction. But you want more. Would you care to write a specification of exactly what you want, and an algorithm for achieving it? Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10227#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler