Re: [Haskell-beginners] if ands

As Haskell uses lazy evaluation so (&&) and if can be functions, as Joe Fredette said previously. In say Lisp which is strict if has to be a primitive / special form and (&&) is likely definable only with if (or implemented as another primitive). In some senses Haskell doesn't need to be smart to be 'smart'. Best wishes Stephen 2009/11/6 Deniz Dogan :

2009/11/6 Keith Sheppard :

Note that Haskell is far from the only programming language that is smart about this. I actually can't think of a single programming language implementation that I know of which isn't this smart...

For what it's worth, Haskell (and others) is smart about ORs as well. In (x || y), y will only be evaluated if x is False.