From: Jacques Carette <carette@mcmaster.ca>
To: Andrej.Bauer@andrej.com
Cc: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Equality of functional values
Date: Tue, 30 Jan 2007 19:15:08 -0500 [thread overview]
Message-ID: <45BFDF8C.20609@mcmaster.ca> (raw)
In-Reply-To: <45BFCF7D.5010302@fmf.uni-lj.si>
Andrej Bauer wrote:
> Jacques Carette said he would be happy with an intensional notion of
> equality of functions. Surely Jacques, you would want some guarantees
> about such an equality to make it useful, otherwise one could just define
>
> let reallySillyIntensionalEquality f g = false
I really meant 'Intensional equality', in other words, if they are the
same as far as the system is concerned (in a logic this usually this
means the same syntactically, but in the case of ocaml that would be
pointer equality).
> So are you suggesting something other than ocaml's == ? What
> guarantees would you expect?
I was under the impression that ocaml's == did funny things with respect
to floats? I want an equality that is "powerful" on ground values and
== on functional values (ie no exceptions when == is not true).
Jacques
next prev parent reply other threads:[~2007-01-31 0:13 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-29 21:04 Simon Frost
2007-01-29 21:11 ` [Caml-list] " Tom
2007-01-29 21:23 ` Brian Hurt
2007-01-29 21:59 ` Gerd Stolpmann
2007-01-30 8:17 ` Christophe Raffalli
2007-01-30 8:45 ` David MENTRE
2007-01-30 13:24 ` Andrej Bauer
2007-01-30 13:55 ` skaller
2007-01-30 14:21 ` Brian Hurt
2007-01-30 15:21 ` Jeff Polakow
2007-01-30 15:49 ` Jacques Carette
2007-01-30 17:23 ` Chris King
2007-01-30 20:18 ` Tom
2007-01-30 20:30 ` Gerd Stolpmann
2007-01-30 20:41 ` Fernando Alegre
2007-01-30 21:01 ` Christophe TROESTLER
2007-01-30 21:08 ` Tom
2007-01-30 21:46 ` Christophe TROESTLER
2007-01-30 22:05 ` Fernando Alegre
2007-01-30 23:13 ` skaller
2007-01-30 23:06 ` Andrej Bauer
2007-01-31 0:15 ` Jacques Carette [this message]
2007-01-31 7:03 ` Stefan Monnier
2007-01-31 12:54 ` [Caml-list] " Jacques Carette
2007-01-31 0:15 ` [Caml-list] " skaller
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