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Information about Dichotomy

Traditionally Dichotomy is any splitting of a whole into exactly two non-overlapping parts. This covers the symmetric form of dichotomy - but there is also the asymmetric form covered in bifurcation where one element has emerged from the other. This is NOT restricted to botany - it in fact covers the properties of the human brain as it aquires information by self-referencing the asymmetric dichotomy of differentiate/integrate.
  • False dichotomy, a logical fallacy where a supposed dichotomy fails one or both of these conditions
  • Classical dichotomy, the division between the real side of an economy and the monetary side
  • In set theory, a dichotomous relation R is such that either aRb, bRa or both.
  • In biology, a dichotomous key divides a set of organisms into two groups smaller groups, typically based on a single characteristic present in exactly one of the groups
  • In botany, a mode of branching by repeated bifurcation
  • Mind-body dichotomy, the belief that humans consist of a soul and a body
  • Dichotomy is a method of execution wherein the victim is cut in two.
  • Divine Dichotomy, as mentioned in Conversations With God.
  • Domestic-public dichotomy, a division of men's and women's roles in a society

See also

false dilemma—also known as false choice, false dichotomy, falsified dilemma, fallacy of the excluded middle, black and white thinking, false correlative, either/or fallacy, and bifurcation
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A fallacy is a component of an argument that is demonstrably flawed in its logic or form, thus rendering the argument invalid in whole. In logical arguments, fallacies are either formal or informal.
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In macroeconomics, the classical dichotomy refers to the idea that real and nominal variables can be analyzed separately. To be precise, an economy exhibits the classical dichotomy if real variables such as output, unemployment, and real interest rates can be completely analyzed
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Set theory is the mathematical theory of sets, which represent collections of abstract objects. It encompasses the everyday notions, introduced in primary school, often as Venn diagrams, of collections of objects, and the elements of, and membership in, such collections.
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For identification keys for life on Earth, see .


An identification key, also known as a dichotomous key, is a method of deducing the correct species assignment of a living thing.
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Bifurcation refers to the main body of one item splitting into two parts.

Bifurcation may also refer to:
  • Bifurcation (law), the division of issues in a trial
  • Bifurcation (accounting),to divide into separate parts or accounts

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mind-body dichotomy is the view that "mental" phenomena are, in some respects, "non-physical" (distinct from the body). The mind-body dichotomy is the starting point of Dualism, and became conceptualized in the form is currently known in the Western world in René Descartes's
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Conversations with God (CwG) is a sequence of nine books written by Neale Donald Walsch. Each book is written as a dialogue in which Walsch asks questions and "God" answers.
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Domestic-Public Dichotomy refers to the divisions between men's roles and women's roles in life. Although these divisions are not being strictly utilized across the world today, they used to be shared across most prehistoric cultures.
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Bipartite means having two parts, or an agreement between two parties. More specifically, it may refer to any of the following:
  • 2 (number)
In mathematics:
  • Bipartite graph
  • Bipartite Cubic, a type of Cubic function

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For other uses, see Dualism (disambiguation).


Dualism is the view that two fundamental concepts exist, such as good and evil, light and dark, or male and female. Often, they oppose each other.
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A trichotomy is a splitting into three parts, and, apart from its normal literal meaning, can refer to:
  • trichotomy (mathematics), in the mathematical field of order theory
  • trichotomy (philosophy), for the idea that man has a threefold nature

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A polytomy (also called a polychotomy) is a section of a phylogeny in which the evolutionary relationships can not be fully resolved to dichotomies.

In a phylogenetic tree, a polytomy is represented as a node which has more than two immediate
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