VALIDITY IN POSSIBLE WORLDS

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FALAHI A.A.; NABAVI L.A.

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Paper Information

Journal: JOURNAL OF PHILOSOPHICAL THEOLOGICAL RESEARCH Year:2008 | Volume:9 | Issue:3 (35) Page(s): 69-88

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Information Journal Paper

Title

VALIDITY IN POSSIBLE WORLDS

Author(s)

FALAHI A.A. | NABAVI L.A. | Issue Writer Certificate

Keywords

RELEVANT LOGICQ2

TRUTH-PRESERVINGQ3

POSSIBLE WORLDQ3

SITUATIONQ2

THE LOGIC PWRQ3

Abstract

Modal Logic's theorems and rules are valid in POSSIBLE WORLDs but RELEVANT LOGIC's theorems and rules are valid, respectively, in logical worlds and SITUATIONs. Robert Meyer in 1974 removed this asymmetry between the theorems and the rules of RELEVANT LOGIC by establishing a logical system, whose theorems and rules are valid in all SITUATIONs. Introducing a new kind of truth and falsity operators, the authors in this article sketch a logical system defined on the basis of RELEVANT LOGIC. Such a system can not only preserve symmetry, but also remove some inconsistency between Modern Classical Logic and RELEVANT LOGIC, because the latter, like the former, puts POSSIBLE WORLDs as a criterion for validity.

Cites

RELEVENT LOGIC AND NEGATION OF COGENCY IN NEGATIVE UNIVERSAL CONDITIONALS

References

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APA: Copy

FALAHI, A.A., & NABAVI, L.A.. (2008). VALIDITY IN POSSIBLE WORLDS. JOURNAL OF PHILOSOPHICAL THEOLOGICAL RESEARCH, 9(3 (35)), 69-88. SID. https://sid.ir/paper/98448/en

Vancouver: Copy

FALAHI A.A., NABAVI L.A.. VALIDITY IN POSSIBLE WORLDS. JOURNAL OF PHILOSOPHICAL THEOLOGICAL RESEARCH[Internet]. 2008;9(3 (35)):69-88. Available from: https://sid.ir/paper/98448/en

IEEE: Copy

A.A. FALAHI, and L.A. NABAVI, “VALIDITY IN POSSIBLE WORLDS,” JOURNAL OF PHILOSOPHICAL THEOLOGICAL RESEARCH, vol. 9, no. 3 (35), pp. 69–88, 2008, [Online]. Available: https://sid.ir/paper/98448/en

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