Duality may refer to:
In philosophy, logic, and psychology:
- Dualism Dualism denotes a state of two parts. The word's origin is the Latin duo, "two" . The term 'dualism' was originally coined to denote co-eternal binary opposition, a meaning that is preserved in metaphysical and philosophical duality discourse but has been diluted in general or common usages, a twofold division in several spiritual, religious, and philosophical doctrines
- Dualism (philosophy of mind) In philosophy of mind, dualism is a set of views about the relationship between mind and matter, which begins with the claim that mental phenomena are, in some respects, non-physical, where the body and mind are considered to be irreducibly distinct
- De Morgan's Laws The law is named after Augustus De Morgan who introduced a formal version of the laws to classical propositional logic. De Morgan's formulation was influenced by algebraisation of logic undertaken by George Boole, which later cemented De Morgan's claim to the find. Although a similar observation was made by Aristotle and was known to Greek and, specifically the ability to generate the dual of any logical expression.
In mathematics:
- Duality (mathematics) In mathematics, duality has numerous meanings, and although it is “a very pervasive and important concept in mathematics” and “an important general theme that has manifestations in almost every area of mathematics”, there is no single definition that unifies all concepts of duality, a mathematical concept
- Dual (category theory), a formalization of mathematical duality
- Duality (projective geometry) In the geometry of the projective plane, duality refers to geometric transformations that replace points by lines and lines by points while preserving incidence properties among the transformed objects. The existence of such transformations leads to a general principle, that any theorem about incidences between points and lines in the projective, general principle of the projective geometry
In science:
- Wave-particle duality In physics and chemistry, wave–particle duality is the concept that all energy exhibits both wave-like and particle-like properties. Being a central concept of quantum mechanics, this duality addresses the inadequacy of classical concepts like "particle" and "wave" in fully describing the behavior of quantum-scale objects, a concept in quantum mechanics
- Duality (electrical circuits), regarding equivalence of electrical circuits
- Duality (electricity and magnetism), regarding equivalence of physical laws
In film:
- Duality (Star Wars fan film), a Star Wars fan film by Dave Macomber and Mark Thomas
- Duality (film), a full-length feature film created by Door Eleven Productions from Boston, MA
In music:
- Duality (Lisa Gerrard & Pieter Bourke album), a 1998 album by Lisa Gerrard and Pieter Bourke
- "Duality" (song), a 2004 single & Grammy-nominated song by Nu-metal band Slipknot
- Duality (Ra album), a 2005 album by the rock band Ra
- Duality, a 2007 single from alternative rock/punk rock band Bayside
Other:
- Duality, a large format audio mixing console by Solid State Logic
- Duality (CoPs) refers to the notion of a duality in a Community of Practice
See also
- Nonduality
- Infinity Infinity is a concept in mathematics and philosophy that refers to a quantity without bound or end. People have developed various ideas throughout history about the nature of infinity. In mathematics, infinity is defined in the context of set theory. The word comes from the Latin infinitas or "unboundedness."
- Triality
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James Cameron's Avatar Videos
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The duality intrigues me, and though it's based on the world of Avatar (the movie), it is actually a prequel and stands a chance of not sucking. ...
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The duality intrigues me, and though it's based on the world of Avatar (the movie), it is actually a prequel and stands a chance of not sucking. ...
and more »
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