úÎ n –  ghcunstableAndy Gill <andygill@ku.edu> If e is s Functor, and e is  -able, then we can   a . ghcunstableAndy Gill <andygill@ku.edu>C is a class that provided a way to reference into a specific type, 1 and a way to map over the deferenced internals. $ takes a data structure that admits , and returns a  that contains 0 the dereferenced nodes, with their children as   rather than recursive values. C is a class that provided a way to reference into a specific type, 1 and a way to map over the deferenced internals.   $ takes a data structure that admits , and returns a  that contains 0 the dereferenced nodes, with their children as   rather than recursive values.      data-reify-0.3Data.Reify.GraphData.Dynamic.Reify Data.ReifyGraphMuRefDeRefmapDeRef reifyGraph $fShowGraphbaseGHC.ShowShow Data.UniqueUnique findNodesmylookup