From: <tomas@tuxteam.de>
To: help-gnu-emacs@gnu.org
Subject: Re: [External] : Re: Indentation with spaces
Date: Sat, 11 Jun 2022 07:33:25 +0200 [thread overview]
Message-ID: <YqQpJX8sKDFCfxpe@tuxteam.de> (raw)
In-Reply-To: <87bkuzu6dx.fsf@dataswamp.org>
[-- Attachment #1: Type: text/plain, Size: 1340 bytes --]
On Sat, Jun 11, 2022 at 07:16:26AM +0200, Emanuel Berg wrote:
> Drew Adams wrote:
>
> >>> Why is `indent-tabs-mode' t by default? Tabs should not
> >>> be used.
> >>
> >> The world is split between 3 factions:
> >> - those users who absolutely cannot tolerate TABs.
> >> - those users who absolutely cannot tolerate the use of SPC instead of
> >> TAB to indent.
> >> - those users who have a life.
> >
> > Hooray! If the closed-world hypothesis applies then I can
> > now say I have a life!
>
> I don't get it joke but
>
> The Closed World Assumption (CWA) is the assumption that
> what is not known to be true must be false [...]
This comes from the first serious steps in AI, where "expert
systems" were built Prolog-style: you have a database of "facts"
(basically simple clauses) and inference rules; you ask a
question and the system tries to prove or disprove it. Under
the closed-world assumption (IMO a better name than "hypothesis")
the system can try to prove its contrary, i.e. to pull off
a proof by contradiction. Otherwise, "I don't know" becomes
a possible answer. Just another way to state that you assume
that your facts database is complete. I think the Wikipedia [1]
article explains it pretty well.
Cheers
[1] https://en.wikipedia.org/wiki/Closed-world_assumption
--
t
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 195 bytes --]
next prev parent reply other threads:[~2022-06-11 5:33 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-08 22:21 Indentation with spaces goncholden via Users list for the GNU Emacs text editor
2022-06-08 22:52 ` Skip Montanaro
2022-06-08 23:40 ` goncholden
2022-06-09 1:57 ` Skip Montanaro
2022-06-09 3:08 ` Emanuel Berg
2022-06-09 3:12 ` goncholden
2022-06-09 3:17 ` Emanuel Berg
2022-06-09 12:01 ` goncholden
2022-06-10 10:02 ` Emanuel Berg
2022-06-09 9:51 ` Skip Montanaro
2022-06-09 12:33 ` goncholden
2022-06-09 18:43 ` Lele Gaifax
2022-06-10 9:57 ` Emanuel Berg
2022-06-10 10:29 ` Emanuel Berg
2022-06-10 18:43 ` goncholden
2022-06-11 4:37 ` Christopher Dimech
2022-06-11 5:38 ` Emanuel Berg
2022-06-11 6:16 ` Christopher Dimech
2022-06-09 13:37 ` goncholden
2022-06-09 13:49 ` goncholden
2022-06-09 16:06 ` tomas
2022-06-10 10:08 ` Emanuel Berg
2022-06-10 9:45 ` Emanuel Berg
2022-06-10 17:57 ` goncholden
2022-06-10 18:08 ` tomas
2022-06-10 18:12 ` goncholden
2022-06-10 18:33 ` Emanuel Berg
2022-06-10 18:46 ` goncholden
2022-06-10 18:40 ` tomas
2022-06-10 18:53 ` Emanuel Berg
2022-06-10 19:05 ` goncholden
2022-06-10 19:27 ` goncholden
2022-06-11 0:56 ` goncholden
2022-06-10 18:29 ` Emanuel Berg
2022-06-09 13:27 ` Po Lu
2022-06-09 15:44 ` goncholden
2022-06-10 10:20 ` Emanuel Berg
2022-06-10 10:16 ` Emanuel Berg
2022-06-10 11:35 ` Po Lu
2022-06-10 18:26 ` goncholden
2022-06-11 0:57 ` Po Lu
2022-06-11 1:05 ` goncholden
2022-06-11 1:17 ` Po Lu
2022-06-11 1:33 ` goncholden
2022-06-11 1:36 ` goncholden
2022-06-11 7:38 ` Eli Zaretskii
2022-06-11 7:44 ` Emanuel Berg
2022-06-11 8:26 ` Eli Zaretskii
2022-06-11 7:57 ` goncholden
2022-06-11 8:27 ` Eli Zaretskii
2022-06-11 9:07 ` goncholden
2022-06-11 10:10 ` Eli Zaretskii
2022-06-11 15:43 ` [External] : " Drew Adams
2022-06-11 20:31 ` goncholden
2022-06-12 2:21 ` Drew Adams
2022-06-12 3:08 ` goncholden
2022-06-12 6:42 ` Eli Zaretskii
2022-06-11 1:49 ` Emanuel Berg
2022-06-11 2:05 ` goncholden
2022-06-10 23:01 ` Emanuel Berg
2022-06-11 0:00 ` goncholden
2022-06-11 7:31 ` Eli Zaretskii
2022-06-11 0:58 ` Po Lu
2022-06-11 1:41 ` Emanuel Berg
2022-06-09 19:01 ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-06-09 20:16 ` [External] : " Drew Adams
2022-06-09 20:20 ` goncholden
2022-06-11 5:16 ` Emanuel Berg
2022-06-11 5:33 ` tomas [this message]
2022-06-11 5:44 ` Emanuel Berg
2022-06-11 5:51 ` goncholden
2022-06-11 15:43 ` Drew Adams
2022-06-12 4:45 ` RE: [External] : " Christopher Dimech
2022-06-13 5:04 ` [External] : " Emanuel Berg
2022-06-10 10:29 ` reinventing the wheel but not faculty, libraries (was: Re: Indentation with spaces) Emanuel Berg
2022-06-09 5:30 ` Indentation with spaces Eli Zaretskii
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
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YqQpJX8sKDFCfxpe@tuxteam.de \
--to=tomas@tuxteam.de \
--cc=help-gnu-emacs@gnu.org \
/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 read-only IMAP folder(s) and NNTP newsgroup(s).