Practice Definition and Characteristics - 17.1.1 | 17. Irreflexive Relation | Discrete Mathematics - Vol 1
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Practice Questions

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Question 1

Easy

What is an irreflexive relation? Provide an example.

💡 Hint: Think of pairs that don't include (a, a).

Question 2

Easy

Define a symmetric relation with an example.

💡 Hint: Check for reciprocal pairs.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What characterizes an irreflexive relation?

  • Elements relate to themselves
  • No elements relate to themselves
  • Some elements relate to themselves

💡 Hint: Think about self-loops in a graph.

Question 2

Can a relation be both symmetric and irreflexive?

  • True
  • False

💡 Hint: Imagine relations without self-connections.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Consider the relation R = {(1, 2), (2, 3), (1, 3), (3, 1)}. Is it transitive, symmetric, or both? Justify your answer.

💡 Hint: Check for flowing relationships versus reciprocal ones.

Question 2

Create a set and relation that is both antisymmetric and irreflexive, and explain your reasoning.

💡 Hint: Think about the elements' distinctness and their relationships.

Challenge and get performance evaluation