Again, this odd interpretation has the result that when one says the lectern might have been in the other room, one is talking about a different lectern. — Banno
Actually, it’s a demonstration of the different “categories of truth”, and how it is his “wish to distinguish them”, beginning at the bottom of pg176. It isn’t about different lecterns; it’s about different ways of knowing about one lectern.
He says, “We can certainly talk about
this very lectern and whether it can have certain properties which in fact it does not have. For example, it could have been in another room from the one it was in fact in, even at this very time, but it could not have been made from the very beginning from water frozen into ice”.
Here he’s saying this lectern cannot have any material property other than the essential one it does, but we can still talk about it as if space were one of its properties. Which is what we do when we say this lectern could have been in another room, but it couldn’t be made of ice.
One of the properties “which in fact it does not have”, regarding the lectern in particular and objects in general, is, of course, space. And, as
hinted, so too is time a property objects in general cannot have.
Thus is the conflict incurred between Kripke’s “categories of truth” and Russell’s so-called “scope of description”, re:
this/that modal distinctions, whereby a necessary identity statement regarding THIS thing, that THIS thing cannot be in THAT place on the one hand, in juxtaposition to the contradictory attribution of space and time as properties, on the other.
Logical statements are validated by themselves, but their proofs are in experience alone. It is far easier to prove THIS thing can be in THAT place and remain THIS thing, then to prove THIS thing in THAT place is not THIS thing.