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.


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