“A linguistic variable is a variable whose values are words or sentences in a natural or synthetic language.”

—  Lotfi A. Zadeh

Variant: A linguistic variable is defined as a variable whose values are sentences in a natural or artificial language.
Source: 1970s, Outline of a new approach to the analysis of complex systems and decision processes (1973), p. 28

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Lotfi A. Zadeh photo
Lotfi A. Zadeh 18
Electrical engineer and computer scientist 1921–2017

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