On 18 Jan 2015, at 19:14, meekerdb wrote:
But why should I assume arithmetical realism,
Because 2+2=4, and there's nothing you (or anyone/anything) can do
to change that.
Sure there is. 2+2=0 in mod 4 arithmetic - which is good for
describing some things.
But this works only because you already agree that 2+2=4 in
arithmetic. This is why 2+2=0 in mod 4 arithmetic.
Bruno
http://iridia.ulb.ac.be/~marchal/
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