The logic of the catuskoti

Comparative Philosophy 1 (2):24-54 (2010)
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Abstract

In early Buddhist logic, it was standard to assume that for any state of a ff airs there were four possibilities: that it held, that it did not, both, or neither. This is the catuskoti (or tetralemma). Classical logicians have had a hard time mak­ing sense of this, but it makes perfectly good sense in the se­mantics of various paraconsistent logics, such as First Degree Entailment. Matters are more complicated for later Buddhist thinkers, such as Nagarjuna, who appear to suggest that none of these options   , or more than one, may hold. The point of this paper is to examine the matter, including the formal logical machinery that may be appropriate

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Graham Priest
CUNY Graduate Center

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References found in this work

In contradiction: a study of the transconsistent.Graham Priest - 2006 - New York: Oxford University Press.
A Natural History of Negation.Laurence R. Horn - 1989 - University of Chicago Press.
Speech Acts: An Essay in the Philosophy of Language.William P. Alston - 1970 - Philosophical Quarterly 20 (79):172-179.
Speech Acts.J. Searle - 1969 - Foundations of Language 11 (3):433-446.
Doubt truth to be a liar.Graham Priest - 2006 - New York: Oxford University Press.

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