only by knights and knaves. Knights always tell the truth, and knaves always lie.
You meet two inhabitants: Sue and Zippy.
Sally claims, “I and Zippy are not the same.”
Zippy says, “Of I and Sally, exactly one is a knight.”
Using DLV, determine who is a knight and who is a knave.
only by knights and knaves. Knights always tell the truth, and knaves always lie. You meet two inhabitants: Sue and Zippy. Sally claims, “I and Zippy are not the same.” Zippy says, “Of I and Sally, exactly one is a knight.” Using DLV, determine who is a knight and who is a knave.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Solve this one using DLV.
A very special island is inhabited only by knights and knaves. Knights always tell the truth, and knaves always lie.
You meet two inhabitants: Sue and Zippy.
Sally claims, “I and Zippy are not the same.”
Zippy says, “Of I and Sally, exactly one is a knight.”
Using DLV, determine who is a knight and who is a knave.
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