Leśniewski’s Concept of Names as Class Names

Vol.20,No.2(2019)

Abstract
Stanisław Leśniewski developed a system of logic and foundations of mathematics that considerably differs from Russell and Whitehead’s system. The difference between these two approaches to logic is significant primarily in the case of Leśniewski’s calculus of names, Ontology, and the concept of names that it contains. Russell’s theory of descriptions played a much more important role than Leśniewski’s concept of names in the history of philosophy. In response to that, several researchers aimed to approximate Leśniewski’s concept of names to Russell’s theory. There are several such attempts. This paper presents an interpretation that was suggested by Arthur Prior. Prior interpreted Leśniewskian names as class names. This interpretation was rejected by such prominent Leśniewskian scholars as Peter Simons or Rafal Urbaniak. According to Simons, class names oppose Leśniewski’s ontological views. Urbaniak claimed that Prior’s interpretation of Leśniewskian names as class names is unclear. The aim of this paper is to demonstrate that from the formal point of view, Prior’s interpretation could be justified.

Keywords:
Stanisław Leśniewski; Arthur N. Prior; theory of descriptions; Leśniewski’s concept of names; Leśniewski’s Ontology
Author biography

Zuzana Rybaříková

Oddělení Interakce člověka a stroje, Výzkumné centrum Nové technologie, Západočeská univerzita v Plzni

vědeckovýzkumný pracovník
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