surjection
Pronunciation:
/sɜː(ɹ).dʒɛk.ʃən/noun
Definitions
A function that is a many-to-one mapping; (formally) Any function f: X\rightarrow Y for which for every y \in Y, there is at least one x \in X such that f(x) = y.
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/sɜː(ɹ).dʒɛk.ʃən/Definitions
A function that is a many-to-one mapping; (formally) Any function f: X\rightarrow Y for which for every y \in Y, there is at least one x \in X such that f(x) = y.