PL EN


2007 | 35 | 4 | 23-41
Article title

CONDITIONALS IN ANCIENT LOGIC

Authors
Title variants
Languages of publication
PL
Abstracts
EN
Ancient research on conditionals are collected and revised. It is claimed, that the problem arises in analyzing of some methods of deduction. Five main ancient concepts of conditionals are analyzed, those of Aristotle, Diodorus Cronus, Philo of Megara, Chrysippus and an anonymous text concerned with a concept of 'dynamei'. It is argued, that this text should be identified with the one by Aristotle. Philo's concept is the classical, truth-functional one. It is suggested, that Aristotle's concept is close to the modern concept of entailment, but not identical. Chrysippus's concept is especially discussed. It is claimed, that, contrary to common opinion, it is not close to C. I. Lewis's modern concept of strict implication. Chrysippus' concept of implication seems to be a nomic or causal one, like Diodorus's concept of temporal implication, while Lewis's concept of strict implication is based on the concept of logical modality.
Year
Volume
35
Issue
4
Pages
23-41
Physical description
Document type
ARTICLE
Contributors
author
  • M. Tkaczyk, Katolicki Uniwersytet Lubelski, Katedra Logiki, al.Raclawickie 14, 20-950 Lublin, Poland
References
Document Type
Publication order reference
Identifiers
CEJSH db identifier
08PLAAAA03557232
YADDA identifier
bwmeta1.element.5f17a56b-6262-3378-aa4b-cdbfe4c2aa5b
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