Greg Ray on Alfred Tarski on logical consequences

Authors
Citation
Wh. Hanson, Greg Ray on Alfred Tarski on logical consequences, J PHILOS LO, 28(6), 1999, pp. 607-618
Citations number
9
Categorie Soggetti
Philosiphy
Journal title
JOURNAL OF PHILOSOPHICAL LOGIC
ISSN journal
00223611 → ACNP
Volume
28
Issue
6
Year of publication
1999
Pages
607 - 618
Database
ISI
SICI code
0022-3611(199912)28:6<607:GROATO>2.0.ZU;2-F
Abstract
In 'Logical consequence, a defense of Tarski' (Journal of Philosophical Log ic, vol. 25, 1996, pp. 617-677), Greg Ray defends Tarski's account of logic al consequence against the criticisms of John Etchemendy. While Ray's defen se of Tarski is largely successful, his attempt to give a general proof tha t Tarskian consequence preserves truth fails. Analysis of this failure show s that de facto truth preservation is a very weak criterion of adequacy for a theory of logical consequence and should be replaced by a stronger absen ce-of-counterexamples criterion. It is argued that the latter criterion ref lects the modal character of our intuitive concept of logical consequence, and it is shown that Tarskian consequence can be proved to satisfy this cri terion for certain choices of logical constants. Finally, an apparent incon sistency in Ray's interpretation of Tarski's position on the modal status o f the consequence relation is noted.