On the Logic of Natural Kinds
- 1 June 1976
- journal article
- Published by Cambridge University Press (CUP) in Philosophy of Science
- Vol. 43 (2) , 202-222
- https://doi.org/10.1086/288677
Abstract
A minimal second order modal logic of natural kinds is formulated. Concepts are distinguished from properties and relations in the conceptual-logistic background of the logic through a distinction between free and bound predicate variables. Not all concepts (as indicated by free predicate variables) need have a property or relation corresponding to them (as values of bound predicate variables). Issues pertaining to identity and existence as impredicative concepts are examined and an analysis of mass terms as nominalized predicates for kinds of stuff is proposed. The minimal logic is extendible through a summum genus, an infima species or a partition principle for natural kinds.Keywords
This publication has 2 references indexed in Scilit:
- Logical atomism, nominalism, and modal logicSynthese, 1975
- Essentialism and Quantified Modal LogicThe Philosophical Review, 1969