preimages

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A form of preimage — For a given function, the set of all elements of the domain that are mapped into a given subset of the codomain; (formally) given a function ƒ : X → Y and a subset B ⊆ Y, the set ƒ⁻¹(B) = {x ∈ X : ƒ(x) ∈ B}.

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Meanings

noun
  1. pluralplural of preimage
Cite this entry
APA

preimages. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/preimages

MLA

“preimages.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/preimages. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “preimages,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/preimages.

Source: preimages on Wiktionary, CC BY-SA 4.0.