Question

How a mapping f : X → Y is one one.

Answer 1

Answer:

In mathematical terms, a bijective function f: X → Y is a one-to-one (injective) and onto (surjective) mapping of a set X to a set Y. The term one-to-one correspondence must not be confused with one-to-one function (a.k.a. injective function)

Step-by-step explanation:

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