Fuzzy sets have been studied in various forms. We now offer a presentation of fuzzy sets whereby they are conceived as representatives of a whole class of sets (that are themselves subsets of the universe of objects on which the fuzzy set is defined).
@article{urn:eudml:doc:38867,
title = {Fuzzy sets as set classes.},
journal = {Stochastica},
volume = {6},
year = {1982},
pages = {249-264},
zbl = {0519.94018},
mrnumber = {MR0705766},
language = {en},
url = {http://dml.mathdoc.fr/item/urn:eudml:doc:38867}
}
Sales, Ton. Fuzzy sets as set classes.. Stochastica, Tome 6 (1982) pp. 249-264. http://gdmltest.u-ga.fr/item/urn:eudml:doc:38867/