[Haskell-cafe] An interesting curiosity

[Evan Laforge]

> All of this works of course because in Haskell, "=" is not an assignment,
> it's a definition, and the RHS is not a variable, it's a pattern. And "4" is
> a perfectly legitimate pattern. Now, if only I could find a use for all this
> that borders on "useful"...! ;-)

I like this one:

let {1 + 1 = 3; 3 + 1 = 3} in 1 + 1 + 1

Right answer, for the wrong reasons.  Useful?  Well... does confusing
people count as useful?