On 05 Mar 2012, at 19:03, Evgenii Rudnyi wrote:

On 05.03.2012 18:29 meekerdb said the following:On 3/5/2012 3:23 AM, Evgenii Rudnyi wrote:The experiment takes an operational approach to what Pi means. During the initial stage of the experiment mathematicians prove the existence of Pi.When mathematicians 'prove the existence' of something they are just showing that something which satisfies a certain definition can be inferred from a certain set of axioms. In your example the mathematicians may define Pi as the ratio of the circumference to the diameter of a circle in Euclidean geometry. But what does that mean if geometry is not Euclidean; and we know it's not since these mathematicians are in the gravitational field of the Earth. Mathematics is about abstract propositions. Whether they apply to reality is a separate question. BrentI agree that this assumption might not be the best one. I will thinkit over.However, I do not completely understand you. How the geometry ofphysical space in which mathematicians reside influences thedefinition of Pi? Mathematicians will consider just Euclideangeometry, that's it. In my view, whether the physical spaceEuclidean or not, does not influence the work of mathematicians.In any case, the problem remains. What is mathematics under theassumption of physicalism? Do you have any idea?

`What most mathematicians believe is that mathematics are the laws true`

`in all physical universes. And physics is true in one physical universe.`

`But with the mechanist hypothesis, we know better: the physical laws`

`are invariant in all numbers' dreams, and physical universe are shared`

`computations. This explains also (not directly) the non sharable`

`truth, the contingent one, etc.`

`The advantage is that we can explain both quanta and qualia, without`

`postulating a physical, nor a mental realm, just by listening to the`

`machine, and not taking them for zombie.`

`It hurts our intuition, today, but science always do that, since its`

`claim that the earth is not the center of reality. With comp we can`

`even understand why science has to hurt machine's intuition.`

`So a physicalist has just to find non mechanist theory of mind, if we`

`want the physical universe to be ontological (existing in some primary`

`sense).`

Bruno http://iridia.ulb.ac.be/~marchal/ -- You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to everything-list@googlegroups.com. To unsubscribe from this group, send email to everything-list+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/everything-list?hl=en.