Duality (mathematics)
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In mathematics, duality has numerous meanings. They are inter-connected, mostly; without there being a single, master duality. The duality of linear algebra is one of the fundamental sources.
- De Morgan dual in logic
- dual (category theory)
- dual polyhedron
- dual space
- duality in order theory
- duality (projective geometry)
- Poincaré duality
- Pontryagin duality
- Serre duality
- Stone duality
- dual number.
See also: duality (physics).