Tag Archives: lists

foldr is made of monoids

> import Data.Monoid In his recent blog post What is foldr made of?, Tom Ellis made the clever observation that foldr is equivalent in power to the combination of map and compose, where > compose :: [a -> a] -> … Continue reading

Posted in haskell, math | Tagged , , , , | 15 Comments


So I’ve taken over the editorship of the Haskell Weekly News, a job that would be completely insane without help from automated tools. Putting together an issue requires gathering information from a number of different sources, summarizing and compiling the … Continue reading

Posted in haskell | Tagged , , , | 2 Comments