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Hyperfuzzy ideals in BCK/BCI-algebras. (English) Zbl 1391.06004
Summary: The notions of hyperfuzzy ideals in BCK/BCI-algebras are introduced, and related properties are investigated. Characterizations of hyperfuzzy ideals are established. Relations between hyperfuzzy ideals and hyperfuzzy subalgebras are discussed. Conditions for hyperfuzzy subalgebras to be hyperfuzzy ideals are provided.

MSC:
06F35 BCK-algebras, BCI-algebras (aspects of ordered structures)
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