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Natural negation of interval-valued t-(co) norms and implications

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Abstract

In this paper, we investigate interval-valued fuzzy negations induced by interval-valued \(t\)-norms, \(t\)-conorms or implications. Some properties of interval-valued fuzzy negations induced by interval-valued sup-morphism \(t\)-norms, inf-morphism \(t\)-conorms or \(R\)-implications are firstly obtained. We also show interval-valued automorphisms acting on the interval-valued fuzzy negations induced by interval-valued \(t\)-norms, \(t\)-conorms or implications. Finally, the relations among the interval-valued fuzzy negations induced by interval-valued \(t\)-norms, \(t\)-conorms or implications are explored.

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Acknowledgments

The authors would like to thank the anonymous referees and the Editor-in-Chief for their valuable comments. This work was supported by the Natural Science Foundation of China (Grant No: 11201279), Zhejiang Provincial Natural Science Foundation (Grant No: LY12A01009), Zhejiang Province Commonweal Technique Research Project (Grant No: 2013C31001) and the Open Foundation from Marine Sciences in the Most Important Subject of Zhejiang (Grant No: 20140102).

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Dechao, L., Yongjian, X. & Youfu, J. Natural negation of interval-valued t-(co) norms and implications. Fuzzy Optim Decis Making 15, 1–20 (2016). https://doi.org/10.1007/s10700-015-9214-8

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