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(a) Prove or disprove if A, B and C are sets then A- (BnC) = (A - B) n(A-C) (b) Prove that P(A) UP(B) ≤ P(AUB) is true for all sets A and B.

(a) Prove or disprove if A, B and C are sets then A- (BnC) = (A - B) n(A-C) (b) Prove that P(A) UP(B) ≤ P(AUB) is true for all sets A and B.

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
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3. Please Help me to solve the following all the subparts perfectly on word:

 

 

PS: You just need to show the prove or disprove (for a) and show the prove or show if it is true (for b).

(a) Prove or disprove if A, B and C are sets then A- (BnC) = (A - B) n (A-C) (b) Prove that P(A) UP(B) ≤ P(AUB) is true for all sets A and B.
Transcribed Image Text:(a) Prove or disprove if A, B and C are sets then A- (BnC) = (A - B) n (A-C) (b) Prove that P(A) UP(B) ≤ P(AUB) is true for all sets A and B.
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