fixed set

noun

A set which is unchanged by a function or other mapping. Formally: a set, S, is a fixed set of a function, f, if and only if for all x in S, f(x)=x.

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Meanings

nounfixed set (plural fixed sets)

plural fixed sets

  1. mathematicsA set which is unchanged by a function or other mapping. Formally: a set, S, is a fixed set of a function, f, if and only if for all x in S, f(x)=x.
Cite this entry
APA

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

MLA

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

Chicago

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

Source: fixed set on Wiktionary, CC BY-SA 4.0.