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A function that is both injective and [[Analysis/Surjectivity|surjective]] is called '''bijective'''.

Injectivity

Injectivity is a property of functions indicating that they are 1-to-1.

Contents

  1. Injectivity
    1. Description

Description

A function is injective if f(x1) = f(x2) implies x1 = x2.

A function that is both injective and surjective is called bijective.

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Analysis/Injectivity (last edited 2026-02-08 18:50:32 by DominicRicottone)