[FOM] Question about "fresh" variables/objects in logics
B.Spitters at cs.ru.nl
Sat Nov 26 08:37:07 EST 2005
On Friday 25 November 2005 16:31, Divianszky Peter wrote:
> Does anybody know of a formal description of the concept of "fresh"
> variable/object in logic?
> This concept is used in theoretical computer science quite often, but I
> have never seen a formal description of it.
> Informally it could be descibed as:
> Let X be an infinite set.
> The definition
> x in X is fresh
> means that
> x is an element of X
> for all y in X defined elsewhere: x not equal y
> The formal description of this concept would help me a lot. I am doing
> research in functional programming and I could use it there.
There's much active work in this direction. Check the Merlin workshop's, for
instance. There are implementions and libraries for both Haskell and OCaml.
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