#2528: documentation for nub and nubBy should be corrected, extended or removed. -----------------------------------+------------------------------------ Reporter: jdressel | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.3 Component: libraries/base | Version: 6.8.2 Resolution: | Keywords: Operating System: Linux | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -----------------------------------+------------------------------------ Changes (by ekmett): * cc: ekmett@…, hvr, ekmett (added) Comment: Jeremy, Reflexivity is violated in base by the instances for `Float`/`Double`, by the behavior around NaN so that law falls apart quickly. `Eq` is also not structural (as demonstrated by `-0` and `0` being `(==)` in `Float`/`Double`), though you didn't offer that one. `Ord` for those is a bit like a funhouse playground. ;) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/2528#comment:15 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler