On 26/10/2015 5:32 pm, Stathis Papaioannou wrote:
On 26 October 2015 at 17:08, Bruce Kellett <[email protected]
<mailto:[email protected]>> wrote:
On 26/10/2015 5:01 pm, Russell Standish wrote:
On Mon, Oct 26, 2015 at 03:40:45PM +1100, Bruce Kellett wrote:
I think Carroll's Paradox (or 'What the Tortoise Said to
Achilles')
effectively undermines computationalism, or any argument that
arithmetic is prior to physics.
See:
https://en.wikipedia.org/wiki/What_the_Tortoise_Said_to_Achilles
In order to escape the paradox, you have to resort to a
formalist
approach, and that renders the formalism devoid of
semantic content.
I don't see why that undermines computationalism. Could you
please expand?
Modus ponens is only a formal manipulation of symbols, with no
semantic content.
This is an argument John Searle has made. The problem is, the brain
can also be described as manipulating symbols with no semantic content
- so where does semantic content come from?
I can point at it, or when I kick the dog, he yelps.
Bruce
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