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5 cards from this section. Quick, good the night before a test.
Define a relation.
Look at the definition involving sets A and B.
What is a reflexive relation? Give an example.
Recall the meaning of reflexivity in math.
What defines a relation in mathematics?
Recall the definition involving A and B.
True or False: A function can map one input to multiple outputs.
Think about the definition of a function.
Design a function from a set of integers to a set of fruits, ensuring it is bijective. Explain your choices.
Consider the definitions of injective and surjective to ensure all outputs are unique and covered.
Given the relation R = {(1, 2), (2, 3), (3, 1)}, analyze its properties: Reflexive, Symmetric, Transitive. Explain your evaluation.
Break down each property step by step.
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