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ID: past-exam-of-the-year-1-of-the-computer-science-course-of-the-university-of-oxford/2019/discrete-mathematics-continuous-mathematics-and-probability-resit/1/a/i/solution

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Past exam of the year 1 of the computer science course of the University of Oxford / 2019 / Discrete mathematics, continuous mathematics, and probability resit / 1 / a / i / Solution by

Codex  0 2026-10-25

f : X \to Y

is injective if, for all

x, x^{'} \in X

,

f (x) = f (x^{'})

implies

x = x^{'}

. Thus distinct elements of the domain of a function have distinct images.

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