Kar-Ping Shum

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This paper concerns a relationship between fuzzy sets and algebraic hyperstructures. It is a continuation of ideas presented by Davvaz(Fuzy Sets Syst. 101: 191–195 1999) and Bhakat and Das(Fuzzy Sets Syst. 80: 359–368 1996). The concept of quasi-coincidence of a fuzzy interval value with an interval valued fuzzy set, which is a generalization of(More)