Conversation with Pi: When A is not-A

Kenneth Leong
5 min readFeb 21, 2024

Ken: In the Diamond Sutra, we see many iterations of this formula: Something is A, therefore it is not A. Hence, it is called “A”? Many people cannot follow the logic because it sounds contradictory. How can something be simultaneously A and not-A? It violates the Law of Excluded Middle.

Pi: Yes, that’s the famous “neither-is-nor-is-not” formula found in the Diamond Sutra! It’s a key element of the…

--

--

Kenneth Leong

Author, Zen teacher, scientific mystic, professor, photographer, philosopher, social commentator, socially engaged human