Preimage

From testwiki
Jump to navigation Jump to search

Template:Also

English

Template:Wikipedia

Etymology

From Template:Prefix.

Pronunciation

Noun

Template:En-noun

  1. Template:Lb For a given function, the set of all elements of the domain that are mapped into a given subset of the codomain; Template:Lb given a function ƒ : X → Y and a subset B ⊆ Y, the set ƒ−1(B) = {x ∈ X : ƒ(x) ∈ B}.
    Template:Ux
    • 1967 [Academic Press], Francois Treves, Topological Vector Spaces, Distributions and Kernels, 2006, Dover, page 22,
      The preimage of a neighborhood U of 0 in E must be a neighborhood of (0,x), since (0,x) is mapped into 0.
    • Template:Quote-book
    • Template:Quote-book

Synonyms

Hyponyms

Derived terms

Translations

Template:Trans-top

Template:Trans-bottom

Further reading