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Análisis filosófico

versão On-line ISSN 1851-9636


LAZZER, Sandra. Consideraciones en torno a la naturaleza conjuntista de la semántica de la Teoría de Conjuntos. Anal. filos. [online]. 2005, vol.25, n.2, pp.121-138. ISSN 1851-9636.

In this paper I discuss some issues concerning the semantics of set theory. The set-theoretical nature of the semantics of axiomatic set theory raises a problem of circularity. It is well-known that when we adopt the model-theoretic point of view in the study of mathematical theories we decide to consider primarily structures in their relationship with languages. But for the fundamental structure adopted in a set-theoretic setting, namely the collection of all sets, together with the relation of membership, we would have in that case a structure whose universe would be a set (because any structure has a set as its universe), and at the same time it would have the power of the collection of all sets. This is precisely the origin of the fundamental problem in the semantics of set theory. Apparently, the recourse to an intuitive or pre-theoretic semantics in terms of the iterative conception of sets is unavoidable. However, this strategy doesn't seem to solve some basic philosophical topics involved and linked to the central semantic problem of set theory, namely, how to understand quantification over the totality of sets. Finally, I put forward some meta-philosophical considerations concerning the semantic problem I deal with.

Palavras-chave : Teoría de conjuntos; Semántica; Concepción iterativa; Consideraciones meta-filosóficas; Set theory; Semantic; Iterative conception; Meta-philosophical considerations.

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