About the distinction between internal and external issues of existence according to Carnap
DOI:
https://doi.org/10.4013/con.2025.212.01Keywords:
Principle of Tolerance. Carnap. Nominalism versus realism.Abstract
The aim is to address the distinction between “internal questions” and “external questions” of existence presented by Carnap in the text “Empiricism, Semantics and Ontology” in order to understand the reason for the so-called “Principle of Tolerance”. To this end, this article is divided into two parts. The first discusses the ancient quarrel between nominalists and realists, a genesis whose progress in the history of thought would later motivate Carnap to distinguish between knowledge of scientific claims (the internal questions of existence) and of metaphysical claims (the external questions of existence), a distinction discussed in the second part. The final consideration will be that, based on Carnap’s elucidation, the apparent incompatibility between the empiricist bias and the adoption of abstract entities would be dissolved.
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