A trichotomy can refer to: *

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

, a mathematical law that every real number is either positive, negative, or zero **

Trichotomy theorem In group theory, the trichotomy theorem divides the finite simple groups of characteristic 2 type and rank at least 3 into three classes. It was proved by for rank 3 and by for rank at least 4. The three classes are groups of GF( ...

, in finite group theory *

Trichotomy (jazz trio) A trichotomy can refer to: * Law of trichotomy, a mathematical law that every real number is either positive, negative, or zero ** Trichotomy theorem, in finite group theory * Trichotomy (jazz trio), Australian jazz band, collaborators with Dan ...

, Australian jazz band, collaborators with

Danny Widdicombe Daniel Marsden "Danny" Widdicombe is a musician from Queensland. Career In 2008 Danny Widdicombe, on resonator guitar and vocals, formed a country blues band the Wilson Pickers alongside John Bedggood on fiddle, mandolin and backing vocals, ...

on a 2019 album *

Trichotomy (philosophy) A trichotomy is a three-way classificatory division. Some philosophers pursued trichotomies. History Important trichotomies discussed by Aquinas include the causal principles (agent, patient, act), the potencies for the intellect (imagination, ...

, series of three terms used by various thinkers *

Trichotomy (speciation) Speciation is the evolutionary process by which populations evolve to become distinct species. The biologist Orator F. Cook coined the term in 1906 for cladogenesis, the splitting of lineages, as opposed to anagenesis, phyletic evolution within ...

, three groups from a common ancestor, where it is unclear or unknown in what chronological order the three groups split * Trichotomous or 3-forked branching in botany

See also