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You meet two people, A and B, from the island inhabited by knights and knaves. Knights tell only the truth, and knaves always lie. Determine if possible who is who if A says "The two of us are both knights" and B says " A is a knave". Write your answer in the space provided.

You meet two people, A and B, from the island inhabited by knights and knaves. Knights tell only the truth, and knaves always lie. Determine if possible who is who if A says "The two of us are both knights" and B says " A is a knave". Write your answer in the space provided.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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**Premises:** 1. "All computer science majors know a programming language." 2. "Cameron Howe is a computer science major." 3. "Gordon Clark knows a programming language." 4. "Daenerys Targaryen is not a computer science major." 5. "Jon Snow doesn't know any programming language." Select two premises from the list above and build a valid argument using the Universal instantiation and another rule(s) of inference of your choice. Make sure to indicate what rule(s) are used in the argument. Write your argument in the space provided. **Note:** Your answer does not require using mathematical symbols. Write the argument you build in words. --- **Question 12** You meet two people, **A** and **B**, from the island inhabited by knights and knaves. Knights tell only the truth, and knaves always lie. Determine if possible who is who if A says, "The two of us are both knights," and B says, "A is a knave." Write your answer in the space provided.
Transcribed Image Text:**Premises:** 1. "All computer science majors know a programming language." 2. "Cameron Howe is a computer science major." 3. "Gordon Clark knows a programming language." 4. "Daenerys Targaryen is not a computer science major." 5. "Jon Snow doesn't know any programming language." Select two premises from the list above and build a valid argument using the Universal instantiation and another rule(s) of inference of your choice. Make sure to indicate what rule(s) are used in the argument. Write your argument in the space provided. **Note:** Your answer does not require using mathematical symbols. Write the argument you build in words. --- **Question 12** You meet two people, **A** and **B**, from the island inhabited by knights and knaves. Knights tell only the truth, and knaves always lie. Determine if possible who is who if A says, "The two of us are both knights," and B says, "A is a knave." Write your answer in the space provided.
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