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Название: Linear mathematics in infinite dimensions: signals, BVPs, special functions
Автор: Gerlach U.H.
Mathematics is the science of measurement, of establishing quantitative relationships between the properties of entities. The entities being measured occupy the whole spectrum of abstractness, from first-level concepts, which are based on perceptual data obtained by direct observation, to high-level concepts, which are further up in the edifice of knowledge.
Furthermore, being the science of measurement, mathematics provides the logical glue that cements and cross-connects the structural components of this edifice.