Answer
(a) Student Sarah Smith has visited the website www.att.com.
(b) There is a student in your class that has visited the website www.imbd.org.
(c) There is a website that José Orez has visited.
(d) There is a website that Ashok Puri and Cidy Yoon have both visited.
(e) There is a student in your class, beside David Belcher, that has visited all websites that David Belcher visited.
(f) There are two different students in your class that have visited the same websites.
Work Step by Step
Given:
W(x,y) =“ Student x has visited website y"
Domain of x=All students in your class Domain of y=All websites
INTERPRETATION SYMBOLS
Conjunction $p \land q$: p and q
Conditional statement $p \rightarrow q:$ if p, then q
Biconditional statement $p \leftrightarrow q$: p if and only if q
Existential quantification $\exists x P(x)$: There exists an element x in the domain such that P(x).
Universal quantification $\forall xP(x)$: P(x) for all values of x in the domain.
Answer
(a) Student Sarah Smith has visited the website www.att.com.
(b) There is a student in your class that has visited the website www.imbd.org.
(c) There is a website that José Orez has visited.
(d) There is a website that Ashok Puri and Cidy Yoon have both visited.
(e) There is a student in your class, beside David Belcher, that has visited all websites that David Belcher visited.
(f) There are two different students in your class that have visited the same websites.
