Practice Summary Of Binary Relations (17.6) - Irreflexive Relation - Discrete Mathematics - Vol 1
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Summary of Binary Relations

Practice - Summary of Binary Relations

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Is the relation R = {(1, 2), (2, 3)} irreflexive?

💡 Hint: Check if (a, a) is in R.

Question 2 Easy

What defines a symmetric relation?

💡 Hint: Think of reciprocal relationships.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What defines an irreflexive relation?

A must relate to itself
A cannot relate to itself
A can relate to any element

💡 Hint: Think about whether (a, a) is present.

Question 2

True or False: A transitive relation means if a relates to b and b to c, then a must relate to c.

True
False

💡 Hint: Visualize the relationships in a graph.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Can a relation be both irreflexive and reflexive for a non-empty set? Justify your answer.

💡 Hint: Reflect on the definitions of both properties.

Challenge 2 Hard

Provide a detailed example of a relation that satisfies all three properties: symmetric, antisymmetric, and transitive. Is such a relation possible?

💡 Hint: Consider the characteristics of an empty set.

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Reference links

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