Re: [Haskell-beginners] The (x:xs) in function parameter is a tuple?

On Thu, 25 Feb 2016 07:49:56 +0800 Nan Xiao wrote:

Rein referred "A tuple can have any number of elements", while Graham referred "There's no "one-ple", or 1-tuple, in Haskell.". So which one is right? The tuple at least contains 2 elements?

There is no one-tuple; however, there's a zero-tuple. Also no arbitrary number of tuple elements allowed, due to definition (we're at 61 for some reason). Refer to http://hackage.haskell.org/package/ghc-prim-0.4.0.0/docs/GHC-Tuple.html best, Max