Re: [lojban] Revising mu'ei and CAhA once again. Possible worlds.

[John E Clifford <kali9putra@yahoo.com>]

OK.  The point is that the whole {da'i} utterance has no truth value, at least not in this world.  It is foundational (and thus true) in some alternate world(s) to which {da'i} takes the discussion.  But I suspect you have something else in mind and I can't quite make out what it is.

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From: And Rosta <and.rosta@gmail.com>
To: lojban@googlegroups.com
Sent: Friday, August 31, 2012 6:25 PM
Subject: Re: [lojban] Revising mu'ei and CAhA once again. Possible worlds.

John E Clifford, On 01/09/2012 00:05:
> Using {da'i} with truth-functional connectives is, of course,
> dissonant, since a {da'i} sentence has no truth value.

The propositional content of a da'i sentence does have a truth-value, and may contain truth-functional connectives. But the speaker is making no claim about what that truth value is. This holds not just for da'i but for most illocutionary UI.

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