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Jorge Llamb�as, On 13/09/2012 23:30:
On Thu, Sep 13, 2012 at 4:31 PM, And Rosta<and.rosta@hidden.email> wrote:Some preliminary not-deeply-thought-out suggestions: 1. Let s-& r- be extensional, in the sense that in s/ra Ra Pa, Ra and Pa are in the same world. 2. I can't make up my mind about l-; I've been vacillating back and forth between having it be like s- and r- and having it unspecified for extensionality. Again, in the sense that la Ra Pa, Ra and Pa are in the same world. I think I'm inclining towards the unspecified option. 3. Split f- into intensional (world-shifting) and nonintensional versions, say f- and h-. It can be a bit verbose, tho: "la fa la sma pvjrna pxro'ekaka'a" as opposed to the ambiguous (or extensional) "la pvjrna pxro'ekaka'a".Why do we want this special treatment for f-predicates and not for every predicate? Wouldn't it be better to have an n- that fixes a predicate to this world? Perhaps "na'a", corresponding to Lojban's "ca'a".
Is "this world" the speaker's? I was thinking not about how to tie predications to the speaker's world but rather about how to tie them to the same world as each other or different worlds from each other. So given Rule (1), how do you talk about making a picture of a unicorn in such a way as to say the unicorn is in the depicted world but not in the world in which the picture is made? And how do you talk about a situation where there is a situation where is a unicorn and I do a picture of the situation? That's not a clear example. Trying again: How do you talk about a situation in which there is an explosion and I photograph it? My thinking is that you'd use f for the former and h for the latter. For both "sa fa X Za" and "sa ha X Za", Za and fa and Za and ha are in the same world, but whereas ha is part of the same spacetime flux as Za, fa is in Za's world a platonic being, not part of the same spacetime as Za. --And.