From jcowan@reutershealth.com Thu Jan 24 13:51:51 2002
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Date: Thu, 24 Jan 2002 16:51:39 -0500
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To: Brook Conner <me@nellardo.com>
Cc: bob@rattlesnake.com, lojban@yahoogroups.com
Subject: Re: lojban as a programming language [was Re: [lojban] Lojban for lay programmers]
References: <267B5602-1102-11D6-9015-003065B787D6@nellardo.com>
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From: John Cowan <jcowan@reutershealth.com>
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Brook Conner wrote:


> (mathematically speaking, IEEE floating point numbers are none of these, 
> are not even a group (I don't think NaN has an additive inverse, and Inf 
> has very peculiar behavior)).


The additive inverse of NaN is NaN, I think, depending on your
definition of inverse: NaN + NaN is not 0, but 0 - NaN is definitely
NaN.

As for not being a group, if they weren't a group over the defined
IEEE operations, that would mean that something not an IEEE-float
was being delivered, which is self-contradictory, since every
bit combination has an IEEE meaning.


> Another problem of semantics is choosing the subset of the vocabulary 
> and making sure the user knows what it is. Are you going for an 
> imperative model? Lots of "ko" running around.


"ko" can be defaulted, though, if that's a convention established
between speaker and listener.

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