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Soft set theory – first results. (English) Zbl 0936.03049
The paper briefly discusses the properties of three of the existing models of uncertainty, namely probability, fuzziness and interval mathematics, and suggests another one called soft sets. Soft sets are defined as parametrized classes of subsets of a universe. Operations with soft sets are defined and discussed. The main part of the paper is devoted to the soft set theoretical approaches to regulation, non-cooperative games and differential calculus.
Reviewer: M.Mareš (Praha)

MSC:
03E70Nonclassical set theories
03E75Applications of set theory
26E50Fuzzy real analysis
28E10Fuzzy measure theory
03E72Fuzzy set theory
91A44Games involving topology or set theory