ZERO AND THE NULL SET ARE THE TWO BASIC FUNDAMENTAL MATHEMATICAL CONCEPTS.
WE DEFINE NULL SET IS THE EMPTY SET AND THERE IS NO WRONG IN THINKING IT TO BE "THE SET OF NOTHINGNESS."
i.e.THE SET OF NOTHINGNESS= { }.
AND THE ZERO IS DEFINED AS 'CARDINALITY OF THE SET OF NOTHINGNESS' i.e. ZERO=CARDINALITY OF THE SET OF NOTHINGNESS. WE WRITE ZERO=CARD({ }).YES OUT OF NOTHINGNESS WE CONSTRUCT MATHEMATICAL REALITIES
IT COULD BE ONE OF THE BASIC FUNDAMENTAL PHILOSOPHY OF MATHEMATICAL REALITIES.(ref:'The Mathematics of Infinity' by Theodore G. Faticoni)
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