From: Thomas Fischbacher <Thomas.Fischbacher@Physik.Uni-Muenchen.DE>
To: yoann padioleau <padator@wanadoo.fr>
Cc: Oliver Bandel <oliver@first.in-berlin.de>, caml-list@inria.fr
Subject: Re: [Caml-list] Lambda-Term (f x) (x f) translated to Ocaml?
Date: Fri, 31 Mar 2006 23:01:26 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.63.0603312259510.5571@eiger.cip.physik.uni-muenchen.de> (raw)
In-Reply-To: <24000351.1143506695382.JavaMail.www@wwinf1608>
> I guess that this is not a lambda term that can be typed.
> There are many of them. A famous one is the Y combinator.
> The _typed_ lambda calculus does not allow all the lambda terms
> of the (normal) lambda calculus.
# let rec y f = f (y f);;
val y : ('a -> 'a) -> 'a = <fun>
--
regards, tf@cip.physik.uni-muenchen.de (o_
Thomas Fischbacher - http://www.cip.physik.uni-muenchen.de/~tf //\
(lambda (n) ((lambda (p q r) (p p q r)) (lambda (g x y) V_/_
(if (= x 0) y (g g (- x 1) (* x y)))) n 1)) (Debian GNU)
next prev parent reply other threads:[~2006-03-31 21:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-28 0:44 yoann padioleau
2006-03-28 0:55 ` Marius Nita
2006-03-28 1:11 ` Oliver Bandel
2006-03-31 21:01 ` Thomas Fischbacher [this message]
2006-03-31 23:53 ` yoann padioleau
-- strict thread matches above, loose matches on Subject: below --
2006-03-28 0:07 Oliver Bandel
2006-03-31 20:58 ` [Caml-list] " Thomas Fischbacher
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