From nobody@digitalkingdom.org Fri Mar 18 05:17:33 2005 Received: with ECARTIS (v1.0.0; list lojban-list); Fri, 18 Mar 2005 05:17:36 -0800 (PST) Received: from nobody by chain.digitalkingdom.org with local (Exim 4.44) id 1DCHLw-0005Ri-Gm for lojban-list-real@lojban.org; Fri, 18 Mar 2005 05:17:24 -0800 Received: from n10a.bulk.scd.yahoo.com ([66.94.237.44]) by chain.digitalkingdom.org with smtp (Exim 4.44) id 1DCHLY-0005QL-I5 for lojban-in@lojban.org; Fri, 18 Mar 2005 05:17:24 -0800 DomainKey-Signature: Received: from [66.218.69.6] by n10.bulk.scd.yahoo.com with NNFMP; 18 Mar 2005 13:15:48 -0000 Received: from [66.218.66.32] by mailer6.bulk.scd.yahoo.com with NNFMP; 18 Mar 2005 13:14:39 -0000 X-Yahoo-Newman-Property: groups-email X-Sender: ben@goertzel.org X-Apparently-To: lojban@yahoogroups.com Received: (qmail 47021 invoked from network); 18 Mar 2005 13:14:38 -0000 Received: from unknown (66.218.66.216) by m26.grp.scd.yahoo.com with QMQP; 18 Mar 2005 13:14:38 -0000 Received: from unknown (HELO intelligenesiscorp.com) (208.234.8.229) by mta1.grp.scd.yahoo.com with SMTP; 18 Mar 2005 13:14:38 -0000 Received: from PICKLEWOMAN (vetta.vettatech.com [200.196.45.33]) by intelligenesiscorp.com (8.12.10/8.12.10) with SMTP id j2IDDJjr010210; Fri, 18 Mar 2005 08:13:25 -0500 Message-ID: <012501c52bcd$08e877f0$7800020a@PICKLEWOMAN> To: , "xah lee" References: <44275d07f070dd249c78acf2c8fd2536@xahlee.org> X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Originating-IP: 208.234.8.229 X-eGroups-Msg-Info: 1:12:0 From: "Ben Goertzel" X-Yahoo-Profile: bgoertzel MIME-Version: 1.0 Mailing-List: list lojban@yahoogroups.com; contact lojban-owner@yahoogroups.com Delivered-To: mailing list lojban@yahoogroups.com Precedence: bulk Date: Fri, 18 Mar 2005 10:13:22 -0500 Subject: [lojban] Re: lojban ills: implicit emphasis Content-Type: multipart/alternative; boundary="----=_NextPart_000_0121_01C52BA3.1D5CC5D0" X-Spam-Score: -2.6 (--) X-archive-position: 9601 X-ecartis-version: Ecartis v1.0.0 Sender: lojban-list-bounce@lojban.org Errors-to: lojban-list-bounce@lojban.org X-original-sender: ben@goertzel.org Precedence: bulk Reply-to: lojban-list@lojban.org X-list: lojban-list ------=_NextPart_000_0121_01C52BA3.1D5CC5D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi, So far as I know the creators of Lojban never claimed nor intended it to be= ISOMORPHIC to logic. Rather, the goal as I understand it was to make a language that provided th= e best possible compromise between * logical soundness * practical usability A language that was simply a verbalizable form of predicate logic would fai= l the "practical usability" criterion.=20 As Cycorp has found, carefully and correctly encoding an ordinary English s= entence in predicate logic takes a trained individual at least 10-15 minute= s. This kind of time-requirement is not viable for a spoken or written lan= guage. What is really cool about Lojban, IMO, is that it shows how far one can go = in the direction of logicality, without making huge sacrifices in terms of = the time required to express commonsensically simple things. Regarding your comment about the existence of different orderings of senten= ces that are semantically equivalent, I don't think emphasis is the main po= int here, but rather cognitive naturalness. If you tried to impose a fixed= ordering on all Lojban sentences, I think you'd be making the process of s= entence-formulation too cognitively unnatural, which means that speaking an= d understanding would be made to take a significantly longer time than with= the current version of Lojban. So I view this as an example of the necess= ary compromise between logical precision and practical usability by human b= eings. Of course, the Lojbanic system of precision/usability compromises is not th= e only possible such system, and there may be a better one. But it is clea= r to me that over the history of Loglan/Lojban a lot of clever folks have p= ut a lot of thought into "tuning" the Lojbanic system of compromises. Even= if one found another logical-language-structure that was fundamentally bet= ter than Lojban, I still suspect it would take a lot of effort to "tune" it= into a really workable language (which so far as I can tell, Lojban *just = barely* is, in spite of all the work that's gone into it...) - Ben Goertzel (also a Lojban novice) ----- Original Message -----=20 From: xah lee=20 To: lojban@yahoogroups.com=20 Sent: Friday, March 18, 2005 5:49 AM Subject: [lojban] lojban ills: implicit emphasis while studying lojban, i find it less and less of my rather ignorant=20 original expectations. (however, i still find studying it greatly=20 fruitful and has useful applications) anyway, here's one snippet of reasons that just came to me, and i=20 thought i'd just throw it out to the open. For example, one can use different ordering to say the same thing but=20 with different emphasis, e.g. do vecnu ta mi ta se vecnu do mi means the same thing but with different emphasis. Now, lojban claims to be isomorphic this or that or logic and explicit=20 semantic this or that, but here there is a implicit meaning attached to=20 emphasis. As a manner of speaking, we may ask, why didn't lojban=20 provide some mechanism to indicate emphasis, instead of using the=20 rather implicit and undefined emphasis attached to ordering? Xah xah@xahlee.org http://xahlee.org/PageTwo_dir/more.html To unsubscribe, send mail to lojban-unsubscribe@onelist.com=20 Yahoo! Groups Sponsor=20 ADVERTISEMENT =20=20=20=20=20=20=20=20=20=20=20=20=20 =20=20=20=20=20=20=20 =20=20=20=20=20=20=20 ---------------------------------------------------------------------------= --- Yahoo! Groups Links a.. To visit your group on the web, go to: http://groups.yahoo.com/group/lojban/ =20=20=20=20=20=20 b.. To unsubscribe from this group, send an email to: lojban-unsubscribe@yahoogroups.com =20=20=20=20=20=20 c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service= .=20 ------=_NextPart_000_0121_01C52BA3.1D5CC5D0 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit
Hi,
 
So far as I know the creators of Lojban never claimed nor intended it to be ISOMORPHIC to logic.
 
Rather, the goal as I understand it was to make a language that provided the best possible compromise between
 
* logical soundness
* practical usability
 
A language that was simply a verbalizable form of predicate logic would fail the "practical usability" criterion.
 
As Cycorp has found, carefully and correctly encoding an ordinary English sentence in predicate logic takes a trained individual at least 10-15 minutes.  This kind of time-requirement is not viable for a spoken or written language.
 
What is really cool about Lojban, IMO, is that it shows how far one can go in the direction of logicality, without making huge sacrifices in terms of the time required to express commonsensically simple things.
 
Regarding your comment about the existence of different orderings of sentences that are semantically equivalent, I don't think emphasis is the main point here, but rather cognitive naturalness.  If you tried to impose a fixed ordering on all Lojban sentences, I think you'd be making the process of sentence-formulation too cognitively unnatural, which means that speaking and understanding would be made to take a significantly longer time than with the current version of Lojban.  So I view this as an example of the necessary compromise between logical precision and practical usability by human beings.
 
Of course, the Lojbanic system of precision/usability compromises is not the only possible such system, and there may be a better one.  But it is clear to me that over the history of Loglan/Lojban a lot of clever folks have put a lot of thought into "tuning" the Lojbanic system of compromises.  Even if one found another logical-language-structure that was fundamentally better than Lojban, I still suspect it would take a lot of effort to "tune" it into a really workable language (which so far as I can tell, Lojban *just barely* is, in spite of all the work that's gone into it...)
 
 
- Ben Goertzel (also a Lojban novice)
 
----- Original Message -----
From: xah lee
To: lojban@yahoogroups.com
Sent: Friday, March 18, 2005 5:49 AM
Subject: [lojban] lojban ills: implicit emphasis

while studying lojban, i find it less and less of my rather ignorant
original expectations. (however, i still find studying it greatly
fruitful and has useful applications)

anyway, here's one snippet of reasons that just came to me, and i
thought i'd just throw it out to the open.

For example, one can use different ordering to say the same thing but
with different emphasis, e.g.

do vecnu ta mi

ta se vecnu do mi

means the same thing but with different emphasis.

Now, lojban claims to be isomorphic this or that or logic and explicit
semantic this or that, but here there is a implicit meaning attached to
emphasis. As a manner of speaking, we may ask, why didn't lojban
provide some mechanism to indicate emphasis, instead of using the
rather implicit and undefined emphasis attached to ordering?

  Xah
  xah@xahlee.org
  http://xahlee.org/PageTwo_dir/more.html



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