×
Get Full Access to Discrete Mathematics And Its Applications - 7 Edition - Chapter 1.2 - Problem 21e
Get Full Access to Discrete Mathematics And Its Applications - 7 Edition - Chapter 1.2 - Problem 21e

×

# Answer: Relate to inhabitants of the island of knights and

ISBN: 9780073383095 37

## Solution for problem 21E Chapter 1.2

Discrete Mathematics and Its Applications | 7th Edition

• Textbook Solutions
• 2901 Step-by-step solutions solved by professors and subject experts
• Get 24/7 help from StudySoup virtual teaching assistants

Discrete Mathematics and Its Applications | 7th Edition

4 5 1 286 Reviews
20
2
Problem 21E

Relate to inhabitants of the island of knights and knaves created by Smullyan, where knights always tell the truth and knaves always lie. You encounter two people, A and B. Determine, if possible, what A and B are if they address you in the ways described. If you cannot determine what these two people arc, can you draw any conclusions?A says “I am a knave or B is a knight” and B says nothing.

Step-by-Step Solution:

SolutionStep 1In this problem we have to find who A and B are.Given: Knights always tell the truth and Knaves always lie.A says “I am a knave or B is a Knight” and B says nothing.So if A is a knave, he must be lying. (since Knaves always lie)Therefore A is not a knave.A is a Knight.Also we have “A says, I am a knave or B is a Knight” As we have concluded that A is a Knight, from the above statement we get B is a Knight.Therefore A is a Knight and B is a Knight.

Step 2 of 3

Step 3 of 3

##### ISBN: 9780073383095

Discrete Mathematics and Its Applications was written by and is associated to the ISBN: 9780073383095. The full step-by-step solution to problem: 21E from chapter: 1.2 was answered by , our top Math solution expert on 06/21/17, 07:45AM. This textbook survival guide was created for the textbook: Discrete Mathematics and Its Applications, edition: 7. This full solution covers the following key subjects: always, people, knights, knaves, determine. This expansive textbook survival guide covers 101 chapters, and 4221 solutions. Since the solution to 21E from 1.2 chapter was answered, more than 333 students have viewed the full step-by-step answer. The answer to “Relate to inhabitants of the island of knights and knaves created by Smullyan, where knights always tell the truth and knaves always lie. You encounter two people, A and B. Determine, if possible, what A and B are if they address you in the ways described. If you cannot determine what these two people arc, can you draw any conclusions?A says “I am a knave or B is a knight” and B says nothing.” is broken down into a number of easy to follow steps, and 74 words.

#### Related chapters

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

Answer: Relate to inhabitants of the island of knights and