[FOM] Falsify Platonism?

[meskew@math.uci.edu]

> One way to falsify set-theoretical Platonism might be by demonstrating
> that CH does not posess a truth value since it is a presumption of
> Platonism in general that all mathematical statements possess such a
> value.
>

How do you "demonstrate" that?  Do you mean "present a convincing
philosophical argument," or something else?  If it's only that then it
could hardly be called falsification because many philosophical arguments
have been given for and against, and the philosophers do not agree.  On
the other hand, proving a contradiction from PA would be evidence we could
all agree on.