noun🔗ShareA classification into two subclasses or opposed parts."The student government meeting exposed the duality of opinions on the new dress code: some wanted more freedom, while others preferred stricter rules. "philosophytheorylogicChat with AIVocabulary GamePractice Reading
noun🔗Share(projective geometry) The interchangeability of points and planes."In projective geometry, the principle of duality allows us to swap the roles of points and planes in a theorem to create a new, equally valid theorem. "mathspaceChat with AIVocabulary GamePractice Reading
noun🔗ShareThe mathematical equivalence of two seemingly different theoretical descriptions of a physical system."The physics student was fascinated by the duality of light, understanding that it can be accurately described as both a wave and a particle, depending on how it's measured. "physicsmaththeorysystemChat with AIVocabulary GamePractice Reading
