Ramsey's Thesis. The Indiscernibility of Objects and Properties in Logic

• Authors: Jacek Paśniczek

Title variants

PL

Teza Ramseya. Nieodróżnialność przedmiotów i własności w logice

EN

Ramsey's Thesis. The Indiscernibility of Objects and Properties in Logic

• Languages of publication: PL

Abstracts

PL

Ramsey questions the distinction between subject and predicate in sentences. Since the distinction mirrors the ontological distinction object/property (particular/universal) he questions the latter distinction as well. There is a symmetry between the category of objects and the category of properties: an object can possess a number of properties and a property can be exemplified by a number of objects. Consequently, it may be claimed that the two categories are formally indiscernible. The paper develops Ramsey's thesis on the ground of logic. Different senses of indiscernibility are discussed and various systems of logic are examined with respect to these senses. Most systems do not distinguish objects from properties in at least one sense.

• Publisher: University of Warsaw, Institute of Philosophy
• Journal: Filozofia Nauki
• Year: 2007
• Volume: 15
• Issue: 2
• Pages: 5-31

Dates

published

2007-06-01

Contributors

author

Jacek Paśniczek