(June 21, 2015 at 10:10 pm)Barefoot Wrote: I'm not sure the second premise is demonstrable either, and that's where I'm confused.
If the premises aren't true, the argument is logically unsound. If the truth of the premises isn't demonstrable, then you have grounds to reject the argument as such.
(June 21, 2015 at 10:10 pm)Barefoot Wrote: Because if meaning isn't determinate then what does that say for science, which presupposes it is?
Not that I'm aware of it doesn't.