>John F. Sowa schrieb:
>> Wacek and Ken,
>>
>> vQ> This encourages me to ask another question: do propositions
>> > involve indexicals? (Would there be proposition-indexicals?)
>> > Does the statement 'he is wise' correspond to a (number of)
>> > proposition(s) about a particular individual at a particular
>> > time each, or can it correspond to a proposition which still
>> > does not have the 'he'-part resolved?
>>
>> KC> I think it's hard to consider any meaning of a proposition
>> > like that without considering that it has an intended referent
>> > for the indexical - that is, that it refers to a particular
>> > individual.
>>
>> I agree with Ken.
>>
>
>So do I, but this means that there is some distinction to be made (at
>least) in relation to indexical sentences. I have once proposed that in
>relation to a sentence such as 'he is wise' one should distinguish
>between a 'sentence mening' and a 'used sentence meaning'. Only used
>sentence meanings can express propositions and have truth-values, but of
>course there is something that corresponds to a non-indexed 'he is
>wise', too. (The idea is to be found in section 1 of my paper
>"Performatives and Antiperformatives", which is linked to my home site
>section 5. However, I am not the first one to have proposed such a
>distinction. David Lewis ... (01)
I believe one can find early echoes of it in
Frege, and maybe even in Aristotle. (02)
>...
> Propositions cannot change truth-values. (03)
I agree. But they can be said to 'hold' in
different contexts. There are blue roses; but if
I believe not, then one might express this by
saying that 'blue roses exist' - a proposition,
which happens to be true - does not hold in my
belief-context. One might even say that it is
false in my belief context, bearing in mind that
false-in-a-context has nothing much to do with
actual truth or falsity. I can believe anything I
want, and that does not alter the facts. So (04)
(that (exist (x)(and (Rose x)(Color x blue))))) (05)
can fail to hold in - be false in - my belief context, and still be true. (06)
Pat (07)
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