Logical and Philosophical Remarks on Quasi-Set Theory

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da Costa, Newton C. A.; Krause, Décio
preprint description
Quasi-set theory is a theory for dealing with collections of indistinguishable objects. In this paper we discuss some logical and philosophical questions involved with such a theory. The analysis of these questions enable us to provide the first grounds of a possible new view of physical reality, founded on an ontology of non-individuals, to which quasi-set theory may constitute the logical basis.