Let P(x), Q(x), R(x), and S(x) be the statements "x is a baby," “x is logical,' "x is able to manage a crocodile," and "x is despised," respectively. Suppose that the domain consists of all people. Express each of these statements using quantifiers; logical connectives; and P(x), Q(x), R(x), and S(x). 77
Let P(x), Q(x), R(x), and S(x) be the statements "x is a baby," “x is logical,' "x is able to manage a crocodile," and "x is despised," respectively. Suppose that the domain consists of all people. Express each of these statements using quantifiers; logical connectives; and P(x), Q(x), R(x), and S(x). 77
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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Transcribed Image Text:Let P(x), Q(x), R(x), and S(x) be the statements "x is a baby," "x is logical,"
"x is able to manage a crocodile," and "x is despised," respectively. Suppose
that the domain consists of all people. Express each of these statements using
quantifiers; logical connectives; and P(x), Q(x), R(x), and S(x).
a) Babies are illogical.
b) Nobody is despised who can manage a crocodile.
c) Illogical persons are despised.
d) Babies cannot manage crocodiles.
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