“In mathematics, logic, linguistics, and other abstract disciplines, the systems are not assigned to objects. They are defined by an enumeration of the variables, their admissible values, and their algebraic, topological, grammatical, and other properties which, in the given case, determine the relations between the variables under consideration.”

—  George Klir

Source: An approach to general systems theory (1969), p. 40.

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George Klir 16
American computer scientist 1932–2016

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