Injective, Surjective and Bijective Functions (continued)

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This video is the second part of an introduction to the basic concepts of functions. It looks at the different ways of representing injective, surjective and bijective functions. Along the way I describe a neat way to arrive at the graphical representation of a function.
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Very clear explanation of these ideas. Thank you. Previously, when I tried to learn about injective, surjective and bijective functions I was confused by the the terms image and codomain in place of range. Could you please could address how these concepts differ from range and one another?

rah