Note this operator now exists in the latest base package as x & f = f x http://hackage.haskell.org/package/base-4.8.0.0/docs/Data-Function.html#v:-38- http:

Note this operator now exists in the latest base package as x & f = f x http://hackage.haskell.org/package/base-4.8.0.0/docs/Data-Function.html#v:-38- http://hackage.haskell.org/package/base-4.8.0.0/docs/Data-Fu...