Some articles on geometry, require:
... from two primitive relations whose fields are a dense universe of points, Tarski built a geometry of line segments ... Upper and Lower Dimension together require that any model of these axioms have a specific finite dimensionality ... axioms yield axiom sets for Euclidean geometry for dimensions 0, 1, and greater than 2 (Tarski and Givant 1999 Axioms 8(1), 8(n), 9(0), 9(1), 9(n) ) ...
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