I\ let p,q and r are three propositions. using the truth table to find : p (qAr ( r)r) 2\ which of the following statements is tautology and which one is contradiction: 1)p + -p 2)p → p 3\ using the truth table and show that : -(-pA (q - p)) = p Vq

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
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I\ let p, q andr are three propositions.using the truth
table to find :
p (qAr (q r) r)
2\ Which of the following statements is tautology and
which one is contradiction:
1)p + -p
2)p → p
3\ using the truth table and show that :
-(¬pA(q-p)) = p V q
Transcribed Image Text:I\ let p, q andr are three propositions.using the truth table to find : p (qAr (q r) r) 2\ Which of the following statements is tautology and which one is contradiction: 1)p + -p 2)p → p 3\ using the truth table and show that : -(¬pA(q-p)) = p V q
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