Is it safe to say that most of us are agreeing that *something* like this should be included in the Prelude? Does anyone feel strongly that this should *not* be in the Prelude? If such is the case, then it seems we have three popular options for the color of this shed: & as seen currently in lens |> as seen in ML # as seen in diagrams I find these to all be acceptable options, and would be happy to see any of them defined in the Prelude as x `op` f = f x. My 2c: I lean towards |> because it is already used in ML, and because I believe it is the most foreign to newcomers, and therefore the most likely to *not* be misinterpreted. On a huge tangent, suppose we used Lisk, which supports "chaining" the same operator as if it were a var-arg function. (|> 5 isZero not) is very close to the equivalent Clojure (-> 5 zero? not). Presumably -> as a Haskell operator name is out of the question. -- Dan Burton