8. 9. The statement, "Some musician play instruments" where M(x) is "x is a musician" and I (x) is "x plays instruments" and the domain consists of all people. A. B. C. D. 3x (M(x) AI (x)) Vx (M(x) AI (x)) 3x (M(x) I (x)) Vx (M(x) I (x)) Which of the following statement is FALSE? A. XÔ X = X B. X (X n z) = (X - Y) U (X -Z) C. XUY) C XC U YC D. XUX = X

8. 9. The statement, "Some musician play instruments" where M(x) is "x is a musician" and I (x) is "x plays instruments" and the domain consists of all people. A. B. C. D. 3x (M(x) AI (x)) Vx (M(x) AI (x)) 3x (M(x) I (x)) Vx (M(x) I (x)) Which of the following statement is FALSE? A. XÔ X = X B. X (X n z) = (X - Y) U (X -Z) C. XUY) C XC U YC D. XUX = X

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

8.
9.
The statement, "Some musician play instruments" where M(x) is "x is a
musician" and I (x) is "x plays instruments" and the domain consists of all
people.
A.
B.
C.
D.
3x (M (x) AI (x))
Vx (M(x)
AI (x))
3x (M(x)
I (x))
Vx (M(x)
I (x))
→
Which of the following statement is FALSE?
A.
X [ X = X
B.
X (Yn z) = (XY) U (X -Z)
C.
XUY) C = XC U YC
D.
XUX = X

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