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e) 3yVz(y W(y,z))) f) 3x³yz((x #y) ^ (W(x, z) ↔ W(y, z))) (David Belcher) ^ (W(David Belcher, z)

e) 3yVz(y W(y,z))) f) 3x³yz((x #y) ^ (W(x, z) ↔ W(y, z))) (David Belcher) ^ (W(David Belcher, z)

Computer Networking: A Top-Down Approach (7th Edition)
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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part E F

5. Let W(x, y) mean that student x has visited website y, where the domain for x consists of all students in your school and the domain for y consists of all websites. Ex- press each of these statements by a simple English sen- tence. a) W(Sarah Smith, www.att.com) b) 3xW(x, www.imdb.org) c) 3yW(José Orez, y) d) Ey(W(Ashok Puri, y) A W(Cindy Yoon, y)) e) 3yVz(y # (David Belcher) ^ (W(David Belcher, z) → W(y,z))) f) 3x³yz((x) ^ (W(x,z) → W(y, z)))
Transcribed Image Text:5. Let W(x, y) mean that student x has visited website y, where the domain for x consists of all students in your school and the domain for y consists of all websites. Ex- press each of these statements by a simple English sen- tence. a) W(Sarah Smith, www.att.com) b) 3xW(x, www.imdb.org) c) 3yW(José Orez, y) d) Ey(W(Ashok Puri, y) A W(Cindy Yoon, y)) e) 3yVz(y # (David Belcher) ^ (W(David Belcher, z) → W(y,z))) f) 3x³yz((x) ^ (W(x,z) → W(y, z)))
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