Abstract
In Bangor, North Wales, it is often drizzling or raining. At any time you will find in the streets people with umbrellas and without umbrellas, varying in number. For some of them it is raining, and yet for some others, it is not raining — both at the same time. So, ‘raining’ is a matter of judgement. We can assign a degree (of truth) to the statement “It is raining” , and funnily enough, both the proposition and its negation can hold true to a certain degree at the same time.
...The Owl put her ear to Buratino’s chest: ‘The patient is rather dead than alive’, — she whispered and turned her head back at 180 degrees. The Frog stroked Buratino with her moist flipper. In deep thought, with her goggle eyes looking in opposite directions, the Frog clapped with her big lips: ‘The patient is rather alive than dead’.
A. Tolstoy “The Golden Key or the Adventures of Buratino” Moscow, DL, 1997, p. 41 (In Russian)
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© 2000 Springer-Verlag Berlin Heidelberg
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Kuncheva, L.I. (2000). Fuzzy sets. In: Fuzzy Classifier Design. Studies in Fuzziness and Soft Computing, vol 49. Physica, Heidelberg. https://doi.org/10.1007/978-3-7908-1850-5_4
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DOI: https://doi.org/10.1007/978-3-7908-1850-5_4
Publisher Name: Physica, Heidelberg
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