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Law of trichotomy information


In mathematics, the law of trichotomy states that every real number is either positive, negative, or zero.[1]

More generally, a binary relation R on a set X is trichotomous if for all x and y in X, exactly one of xRy, yRx and x = y holds. Writing R as <, this is stated in formal logic as:

  1. ^ Trichotomy Law at MathWorld

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Law of trichotomy

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In mathematics, the law of trichotomy states that every real number is either positive, negative, or zero. More generally, a binary relation R on a set...

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Trichotomy

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Look up trichotomy in Wiktionary, the free dictionary. A trichotomy can refer to: Law of trichotomy, a mathematical law that every real number is either...

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Cardinality

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For more detail, see § Cardinality of the continuum below. If the axiom of choice holds, the law of trichotomy holds for cardinality. Thus we can make...

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Sign function

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}}x<0,\\0&{\text{if }}x=0,\\1&{\text{if }}x>0.\end{cases}}} The law of trichotomy states that every real number must be positive, negative or zero....

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Equinumerosity

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cardinality of A is said to be strictly smaller than the cardinality of B. This is denoted |A| < |B|. If the axiom of choice holds, then the law of trichotomy holds...

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Gottlob Frege

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important preliminary theorems, for example, a generalized form of law of trichotomy, were derived within what Frege understood to be pure logic. This...

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Constructive analysis

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x\cong 0} and indeed at most one of the three can hold at once. But the stronger, logically positive law of trichotomy disjunction does not hold in general...

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Surreal number

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exactly one of x < y, x = y, x > y, holds (law of trichotomy). This means that < is a linear order (except that < is a proper class). For sets of numbers...

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Begriffsschrift

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numbers, then one of the following must hold: x < y, x = y, or y < x. This is the so-called "law of trichotomy". For a careful recent study of how the Begriffsschrift...

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Semiring

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0 {\displaystyle \neg (x<0\lor 0<x)\to x=0} , or classically the law of trichotomy. With its standard addition and multiplication, this structure forms...

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Court of equity

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ISBN 978-1-76002-053-8. OCLC 933756917. Yale, David (1985). "A trichotomy of equity". The Journal of Legal History. 6 (2): 194. doi:10.1080/01440368508530837...

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Speciation

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order of speciation of three groups from a common ancestor may be unclear or unknown; a collection of three such species is referred to as a "trichotomy".[citation...

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Limited principle of omniscience

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analogous properties in the theory of real numbers. The analytic LPO states that every real number satisfies the trichotomy x < 0 {\displaystyle x<0} or x...

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Timeline of the history of the scientific method

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Charles Sanders Peirce writes his Illustrations of the Logic of Science. The work popularises his trichotomy of abduction, deduction and induction. 1885 –...

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South African law of agency

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distinction should be abandoned altogether (544). See also ADE Lewis, "The Trichotomy in Locatio Conductio", (1973) 8 The Irish Jurist 164. Zimmermann: "It...

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Politics of Bhutan

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are unified in the person of the Druk Gyalpo (King of Bhutan). The trichotomy of secular government is not absolute. There are many independent commissions...

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Premises liability

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liability trichotomy for a reasonable-person standard in light of Rowland v. Christian. This section includes some examples of state case law. In Lai Chau...

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Ailuridae

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its own independent family, Ailuridae. Ailuridae are, in turn, part of a trichotomy within the broad superfamily Musteloidea that also includes the Procyonidae...

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Semiotic theory of Charles Sanders Peirce

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argumentative, standing for its object in respect of habit or law. This is the trichotomy of all signs as building blocks of inference. (Also called sumisigns, dicent...

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Henry Thomas Buckle

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diminishing influence of physical laws, and a continually increasing influence of mental laws; That the mental laws that regulate the progress of society cannot...

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3

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made threefold divisions, or trichotomies, which have been important in their work.[citation needed] Hegel's dialectic of Thesis + Antithesis = Synthesis...

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Connected relation

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connex or said to satisfy trichotomy (although the more common definition of trichotomy is stronger in that exactly one of the three options x R y , y...

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Dichotomy

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excluded middle, which in logic asserts the existence of a dichotomy Polychotomy Taxonomy Trichotomy (disambiguation) Komjath, Peter; Totik, Vilmos (2006)...

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Outline of logic

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Surjective function Symmetric relation Ternary relation Transitive relation Trichotomy (mathematics) Well-founded relation Mathematical logic Set theory  (list)...

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Nepal

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part of the Skanda Purana, the largest Mahāpurāṇa. On Samudragupta's Allahabad Pillar, Nepal is mentioned as a border country. This trichotomy is a prominent...

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