Use Venn diagrams to show for sets A, B, and C: a. ( A ∪ B ) ⊆ ( A ∪ B ∪ C ) b. ( A ∩ B ∩ C ) ⊆ ( A ∩ B ) c. ( A − B ) − C ⊆ A − C
Use Venn diagrams to show for sets A, B, and C: a. ( A ∪ B ) ⊆ ( A ∪ B ∪ C ) b. ( A ∩ B ∩ C ) ⊆ ( A ∩ B ) c. ( A − B ) − C ⊆ A − C
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
Use Venn diagrams to show for sets A, B, and C:
a. ( A ∪ B ) ⊆ ( A ∪ B ∪ C )
b. ( A ∩ B ∩ C ) ⊆ ( A ∩ B )
c. ( A − B ) − C ⊆ A − C
d. ( A − C ) ∩ ( C − B ) = ∅
e. ( B − A ) ∪ ( C − A ) = ( B ∪ C ) − A
f. ( A − B ) − C = ( A − C) − (B − C)
use the following Venn diagram for your answers:
![](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbf60c2a1-626f-4eac-9301-0b8a3d9c4cb4%2F4a0c2466-5bad-4b4b-896a-bd3dcfce0f73%2Fs51h7a_processed.jpeg&w=3840&q=75)
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