Answered: 4- Find the truth set of each of these…

4- Find the truth set of each of these predicates where the domain is the set of integers. a) P(x): |x| = 1 b) Q(x): x² = 2x c) R(x): |x| = x d) S(x): x³

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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Concept explainers

Predicates

A predicate is a function defined with set of variables, which returns the result True or False. The output of a predicate is a Boolean value as a response when given a set of parameters:

Question

4- Find the truth set of each of these predicates where the domain is the set of integers.
a) P(x): |x| = 1
b) Q(x): x² = 2x
c) R(x): x= x
d) S(x): x³<x²

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