Bustince, HumbertoBarrenechea, EdurneBurusco, AnaFernandez, JavierRodríguez González, Juan TinguaroMontero De Juan, Francisco JavierPagola, MiguelGómez González, DanielSeising, Rudolf2023-06-192023-06-192015Bustince, H., Barrenechea, E., Burusco, A., Fernández, J., Rodríguez, J.T., Montero, J., Pagola, M., Gómez, D.: From Trillas’ Negations and Antonyms to a Set Representation of Contradiction Within Bipolar and Other Extensions of Fuzzy Sets. En: Seising, R. (ed.) Accuracy and Fuzziness. A Life in Science and Politics. pp. 159-177. Springer International Publishing, Cham (2015)978-3-319-18605-410.1007/978-3-319-18606-1_15https://hdl.handle.net/20.500.14352/35749A Festschrift book to Enric Trillas RuizIn 1979, Enric Trillas started to interest in in fuzzy connectives. His first paper on this topic was ”Funciones de negacin en la teora de subconjuntos difusos” ([9]) (Negation functions in the theory of fuzzy subsets), which appeared in Spanish in the Stochastica journal. This work, focused on the characterization of strong negations, has been so relevant for the development of fuzzy theory that it was translated into English and widely cited in the last 35 yearsengbook parthttps//doi.org/10.1007/978-3-319-18606-1_15http://link.springer.com/chapter/10.1007%2F978-3-319-18606-1_15restricted access510.64Lógica simbólica y matemática (Matemáticas)1102.14 Lógica Simbólica