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4) Is E C F true? O Yes, it is true. O No, it is false. O Neither, it is undefined. 5) Is {E} C F true? O Yes, it is true. O No, it is false. O Neither, it is undefined.

4) Is E C F true? O Yes, it is true. O No, it is false. O Neither, it is undefined. 5) Is {E} C F true? O Yes, it is true. O No, it is false. O Neither, it is undefined.

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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6) Is {2,3} C Ftrue? O Yes, it is true. O No, it is false. O Neither, it is undefined.
Transcribed Image Text:6) Is {2,3} C Ftrue? O Yes, it is true. O No, it is false. O Neither, it is undefined.
Let A denote any set. 1) ACA is O True O False 2) How many elements does {{Ø, {Ø}}, 0} have? O 1 O 2 Let E = {2,3} and let F = {2, 3, {2, 3}}. %3D 1) How many elements does E contain? 2) How many elements does F have? 3) Is E E F true? O Yes, it is true. O No, it is false. O Neither, it is undefined. 4) Is E C F true? O Yes, it is true. O No, it is false. O Neither, it is undefined. 5) Is {E} C F true? O Yes, it is true. O No, it is false. O Neither, it is undefined.
Transcribed Image Text:Let A denote any set. 1) ACA is O True O False 2) How many elements does {{Ø, {Ø}}, 0} have? O 1 O 2 Let E = {2,3} and let F = {2, 3, {2, 3}}. %3D 1) How many elements does E contain? 2) How many elements does F have? 3) Is E E F true? O Yes, it is true. O No, it is false. O Neither, it is undefined. 4) Is E C F true? O Yes, it is true. O No, it is false. O Neither, it is undefined. 5) Is {E} C F true? O Yes, it is true. O No, it is false. O Neither, it is undefined.
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