Practice Reflexive Vs. Symmetric Relations (17.2.3) - Irreflexive Relation
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Reflexive vs. Symmetric Relations

Practice - Reflexive vs. Symmetric Relations

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Practice Questions

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Question 1 Easy

What is an irreflexive relation?

💡 Hint: Think about what happens with self-loops.

Question 2 Easy

Can a relation be both reflexive and irreflexive? Under what condition?

💡 Hint: Consider the implications of having no elements.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is a symmetric relation?

A. If (a
b) exists
then (b
a) must also exist.
B. A relation with no self-loops.
C. A relation that is always reflexive.

💡 Hint: Think about pairs relating to each other.

Question 2

True or False: An empty relation can be considered symmetric.

True
False

💡 Hint: Remember the conditions for relations in the absence of elements.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a set A = {1, 2, 3, 4} and a relation defined as R = {(1, 2), (2, 1), (3, 4)}, determine if R is symmetric, asymmetric, or neither.

💡 Hint: Identify the pairs and their relationships.

Challenge 2 Hard

Prove or disprove: A relation can be both asymmetric and antisymmetric.

💡 Hint: Consider the definitions closely.

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