Question

What are the definitions for the following?

a relation to be a function

a function to be an injection

XmodY

Answer #1

Let's say we have the following relation defined on the set {0,
1, 2, 3}:
{ (0, 0), (0, 2), (2, 0), (2, 2), (2, 3), (3, 2), (3, 3) }
- Please answer the following 3 questions about this relation. (The
relation will be repeated for each question.) Is this relation a
function? Why or why not?
- What are the three properties that must be present in an
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