From: Hendrik Tews <tews@tcs.inf.tu-dresden.de>
To: caml-list@inria.fr
Subject: Re: [Caml-list] syntax of private constructors in CVS version
Date: Tue, 1 Jul 2003 09:43:24 +0200 [thread overview]
Message-ID: <16129.15260.246738.767412@ithif51.inf.tu-dresden.de> (raw)
In-Reply-To: <200306301839.UAA20778@pauillac.inria.fr>
Pierre Weis writes:
As you should already know, usual sum and product types in Caml
correspond to the mathematical notion of free algebraic data
structures.
If you consider the ocaml fragment without recursive values.
For instance:
type nat =
| Zero
| Succ of nat;;
let rec x = Succ x;;
This x does not belong to the free algebra.
(And BTW, the product types are not free, they are cofree or
terminal or final, whatever terminology you prefer.)
Sorry for nitpicking,
Hendrik Tews
-------------------
To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr
Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/
Beginner's list: http://groups.yahoo.com/group/ocaml_beginners
next prev parent reply other threads:[~2003-07-01 7:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-27 20:50 Shaddin Doghmi
2003-06-27 21:15 ` brogoff
2003-06-27 22:10 ` Shaddin Doghmi
2003-06-28 2:24 ` brogoff
2003-06-30 18:39 ` Pierre Weis
2003-06-30 19:00 ` Chris Hecker
2003-06-30 21:36 ` brogoff
2003-07-01 10:47 ` Pierre Weis
2003-07-01 7:43 ` Hendrik Tews [this message]
2003-07-01 10:37 ` Yaron M. Minsky
2003-07-01 10:51 ` Yaron M. Minsky
2003-07-01 17:05 ` Pierre Weis
2003-07-01 17:20 ` brogoff
2003-07-03 11:46 ` John Max Skaller
2003-07-07 22:31 ` Pierre Weis
2003-07-13 9:11 ` John Max Skaller
2003-07-15 8:02 ` Laurent Vibert
2003-07-15 8:22 ` Pierre Weis
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=16129.15260.246738.767412@ithif51.inf.tu-dresden.de \
--to=tews@tcs.inf.tu-dresden.de \
--cc=caml-list@inria.fr \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).