The paper "Operations on Fuzzy Numbers" by Didier Dubois and Henri Prade, published in the International Journal of Systems Science in 1978, explores various operations that can be performed on fuzzy numbers. Fuzzy numbers are a generalization of real numbers that allow for degrees of membership in sets, making them useful in modeling uncertainty and imprecision. The authors discuss methods for addition, subtraction, multiplication, and division of fuzzy numbers, providing a foundational framework for further research and practical applications in fuzzy logic and systems science.The paper "Operations on Fuzzy Numbers" by Didier Dubois and Henri Prade, published in the International Journal of Systems Science in 1978, explores various operations that can be performed on fuzzy numbers. Fuzzy numbers are a generalization of real numbers that allow for degrees of membership in sets, making them useful in modeling uncertainty and imprecision. The authors discuss methods for addition, subtraction, multiplication, and division of fuzzy numbers, providing a foundational framework for further research and practical applications in fuzzy logic and systems science.