Definition of "tetralemma" [tetralemma]

• A figure in Ancient Greek and Eastern logic with four possibilities. (noun)

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• "The relationship between two sets is a tetralemma if there are four possibilities."
• "Two sets may also constitute a trilemma (mu-gsum) or a tetralemma (mu-bzhi)."
• "Majjhima-nikâya 72, relating the teachings of the historical Buddha, offers a precursor for Nâgârjuna's doctrine of the negative tetralemma."