Answered: b. ЭЬР(1,b) с. VазbР(а, b) d. 3bvaP(a,…

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b. ЭЬР(1,b) с. VазbР(а, b) d. 3bvaP(a, b)

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

Consider a statement ?(?, ?) which describes “? + ? = ? − ?. ” Suppose that ? and ? are all integers. Find truth value for each of following statements.

b. abP(1, b)
с. VaзbР(а, b)
d. 3bvaP(a, b)

Expert Solution

Step 1

b. $\exists b P (1, b)$

1	b	1+b	1-b
1	0	1	1
1	1	1	0

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