Fuzzy Logic [was Re: [lojban] Re: Dao De Jing [was Re: Promoting Lojban]]

["Bob LeChevalier (lojbab)" <lojbab@lojban.org>]

At 10:14 PM 2/21/99 -0500, Steven D. Arnold wrote:
>From: "Steven D. Arnold" <yami@dementian.com>
>>> (1) Predicate logic and its offshoots are a lot more flexible than
>>> Aristotelian logic.  I would hope logicians have got to the point where
they
>>> aren't just relexicalising Greek!
>
>They certainly have.
>
>I once began dreaming up an infinite-valued logic, where every assertion had
>a truth-value between 0 and 1 inclusive.  Instead of truth tables, you'd
>have truth formulas or algorithms to define AND, OR, NOT, etc.  (I don't
>know how close fuzzy logic would come to this.  Is it infinite-valued or
>multi-valued, or something completely different?)
>
>
>> Even fuzzy logic is for some advanced people to read.
>
>Speaking of fuzzy logic, what kinds of structures and words would we need to
>apply such a system in Lojban?

There have been several debates about fuzzy logic in Lojban in the last 2-3
years that beat this topic long past the dead horse stage.  Per the Book,
(Chap 11, section 6) "jei" is in the language to support fuzzy logic, and
other mechanisms have been proposed but are conventional rather than
grammatical.  Scan the archives for posts by Stephen Belknap in the last
few years and read any ensuing threads )or of couse just look for "fuzzy"
in subject lines).

lojbab