7. Let P denote the set of all phones in the world such that p ∈ P is a phone. Thus, S(p) denotes that “p is a SamsungTM phone”, N(p) denote that “p is a NokiaTM phone”, and G(p) denote that “p is a GoogleTM phone”. Therefore, express each of the following statements using quantifiers, logical operations, and the propositional functions: S(p),N(p),G(p). (a) There is a GoogleTM phone that is also a SamsungTM phone. (b) Every NokiaTM phone is a GoogleTM phone. (c) No NokiaTM phone is a GoogleTM phone.
7. Let P denote the set of all phones in the world such that p ∈ P is a phone. Thus, S(p) denotes that “p is a SamsungTM phone”, N(p) denote that “p is a NokiaTM phone”, and G(p) denote that “p is a GoogleTM phone”. Therefore, express each of the following statements using quantifiers, logical operations, and the propositional functions: S(p),N(p),G(p). (a) There is a GoogleTM phone that is also a SamsungTM phone. (b) Every NokiaTM phone is a GoogleTM phone. (c) No NokiaTM phone is a GoogleTM phone.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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7. Let P denote the set of all phones in the world such that p ∈ P is a phone. Thus, S(p)
denotes that “p is a SamsungTM phone”, N(p) denote that “p is a NokiaTM phone”, and G(p)
denote that “p is a GoogleTM phone”. Therefore, express each of the following statements using
quantifiers, logical operations, and the propositional functions: S(p),N(p),G(p).
(a) There is a GoogleTM phone that is also a SamsungTM phone.
(b) Every NokiaTM phone is a GoogleTM phone.
(c) No NokiaTM phone is a GoogleTM phone.
(d) Some NokiaTM phones are also SamsungTM phones.
(e) Some NokiaTM phones are also GoogleTM phones and some are not.
PS: Please do not answer them in a paper format.
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