(а) -(Ал -А) (b) -А — (А > В) (с) AV -A

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Prove the following using natural deduction.
(a) (AA¬A)
(b) ¬A → (A –→ B)
(c) AV¬A
(d) (A → CV D) → ((A → C) V (A D))
(e) AA (BV C) (A A B) V (A A C)
(f) Given A B, show ¬A ¬B
(g) Given A -C and B D, show A V B →CV D
Transcribed Image Text:Prove the following using natural deduction. (a) (AA¬A) (b) ¬A → (A –→ B) (c) AV¬A (d) (A → CV D) → ((A → C) V (A D)) (e) AA (BV C) (A A B) V (A A C) (f) Given A B, show ¬A ¬B (g) Given A -C and B D, show A V B →CV D
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