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• 14:09, 5 July 2023 Admin talk contribs deleted page Valuation (geometry) (content was: "In geometry, a '''valuation''' is a finitely additive function on a collection of admissible subsets of a fixed set <math>X</math> with values in an abelian semigroup. For example, the Lebesgue measure is a valuation on finite unions of convex bodies (that is, non-empty compact convex sets) of Euclidean space <math>\R^n.</math> Other examples of valuations on finite unions of convex bodies are the surface area, the mean width, and the Euler characteristic. In...")