30 March 2016 24 8K Report

Such a question arises because of three problems

(1)   We cannot present geometry in the coordinate free form, although Euclid presented geometry in the coordinate free form, because coordinate system was not known in that time.

(2)   Such important physical principle as the relativity principle is formulated as an invariance with respect of a coordinate transformation. Invariance with respect to transformation of the way of description cannot be a physical principle.

(3) One cannot express dimension of  Euclidean geometry via Euclidean metric, although all relations of  Euclidean geometry can be expressed via metric and only via metric (or via Euclidean world function).

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