>> Yeah, I can't find it on >> http://www.haskell.org/ghc/docs/latest/html/libraries/containers/Data-Map.html. >> What's the signature? > > My mistake: it's a private version of (!). Ahh, kill away then. I wouldn't mind removing (!) too as long as we're deprecating things :) In the presence of toDescList I agree findMax can go away.