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Duality
Noun
Definitions
1.
Noun
A classification into two subclasses or opposed parts.
"moral duality; philosophical duality; The novel explored the duality of good and evil.; He was fascinated by the duality of human nature."
2.
Noun
The interchangeability of points and planes.
3.
Noun
The mathematical equivalence of two seemingly different theoretical descriptions of a physical system.
"wave-particle duality"
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