[MW] Thinking is an activity
that goes on in a spatio-temporal location, and a thought is presumably the
result of this, and is a state of, perhaps part of, someone’s brain.
Even if this is true, (which is highly debatable) thoughts
also have content. They can be about things. How do you account for
[MW] This is about representation/semiotics, the content is
represented in the brain somehow, and represents what it is about.
[MW] Beliefs would
usually be about rules that are followed.
Beliefs are usually about rules?? You have GOT to be
[MW] Maybe we are thinking about different cases. I believe that
if I jump out of a plane I will fall towards the ground at increasing speed. It
seems to me this is about the laws of physics I believe hold about unsupported
objects close to the Earth. But I guess there could be other examples like
believing a particular state of affairs is the case. This would be a relationship
between some possible state of affairs in some possible world and the believer.
So the rules would be
around some classes, and the belief part is about how someone views those
Let me add to Paola's list:
symbols (for example, the semaphore sign for the letter
"E", or the British naval 'blue peter' flag design, which means that
the ship is embarking.)
[MW] This is mostly about representation/semiotics again. We
talked about this recently, do I need to repeat myself? Numbers are the only
thing here that I think are difficult. ISO 15926 treats them as classes (as in
the set of sets with 4 members) but I am not convinced that is the best
approach, so I would probably allow numbers to be abstract as well as sets
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