direct system

noun

A set of algebraic structures (which are part of a concrete category; e.g., modules) and a set of morphisms between them (e.g., module homomorphisms) which all together form a small category which is the image of a covariant functor whose domain is a directed poset.

Opposite
inverse system
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Meanings

noundirect system (plural direct systems)

plural direct systems

  1. algebraA set of algebraic structures (which are part of a concrete category; e.g., modules) and a set of morphisms between them (e.g., module homomorphisms) which all together form a small category which is the image of a covariant functor whose domain is a directed poset.

Synonyms & antonyms

Opposite
inverse system
Cite this entry
APA

direct system. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/direct%20system

MLA

“direct system.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/direct%20system. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “direct system,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/direct%20system.

Source: direct system on Wiktionary, CC BY-SA 4.0.