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Question : Let s be a string of length 2 with characters from {0, 1, 2}, and define statements a, b, c, and d as follows: a = "the first character of s is 0” b = “the first character of s is 1” c = “the second character of s is 1” d = “the second character of s is 2”. Describe the set of all strings for which each of the following is true.? ----on picture

Question : Let s be a string of length 2 with characters from {0, 1, 2}, and define statements a, b, c, and d as follows: a = "the first character of s is 0” b = “the first character of s is 1” c = “the second character of s is 1” d = “the second character of s is 2”. Describe the set of all strings for which each of the following is true.? ----on picture

Database System Concepts
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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Question :

Let s be a string of length 2 with characters from {0, 1, 2}, and define statements a, b, c, and d as follows:

a = "the first character of s is 0”

b = “the first character of s is 1”

c = “the second character of s is 1”

d = “the second character of s is 2”.

Describe the set of all strings for which each of 

the following is true.?

----on picture

 

a. (a v b) ^ (c V d) b. (~(a v b)) ^ (c V d) c. ((~a) V b) ^ (c V (~d))
Transcribed Image Text:a. (a v b) ^ (c V d) b. (~(a v b)) ^ (c V d) c. ((~a) V b) ^ (c V (~d))
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