Functions (Well-defined, Injective, Surjective, Bijective)

This is a short lecture about properties of functions. Sometimes a function is loosely synonymous with relation or mapping. The “input has unique output” property we typically associate with functions (from a college algebra perspective) is called the “well-defined” property. Other properties we describe are invective (one-to-one), surjective (onto), and bijective (both one-to-one and onto).

[mohammadamanalimyzada]

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[PunmasterSTP]

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