Let W (x , y) mean that student x has visited website y,
Chapter 1, Problem 1.4.5(choose chapter or problem)
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. Express each of these statements by a simple English sentence. a) W(Sarah Smith, www.att.com) b) 3xW(x, www.imdb.org) c) 3yW(Jose Orez, y) d) 3y(W(Ashok Puri, y) 1\ W(Cindy Yoon, y e) 3y'v'z(y i= (David Belcher) 1\ (W(David Belcher, z) -+ W(y,z ) 1) 3x3y'v'z((x i= y) 1\ (W(x , z) B W(y, z)))
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