Let C(x) be the statement “x has a cat,” and let D(x) be the statement “x has a dog.” Let the domain consist of all students in this class. Express each of the following propositions in regular sentences.(a)∀x(C(x)→D(x)) (b)∀x(¬C(x)→D(x)) (c) (∃xC(x))∧(∀xD(x)) (d)∀x(C(x)⊕D(x))

Let C(x) be the statement “x has a cat,” and let D(x) be the statement “x has a dog.” Let the domain consist of all students in this class. Express each of the following propositions in regular sentences.(a)∀x(C(x)→D(x)) (b)∀x(¬C(x)→D(x)) (c) (∃xC(x))∧(∀xD(x)) (d)∀x(C(x)⊕D(x))

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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Question

Let C(x) be the statement “x has a cat,” and let D(x) be the statement “x has a dog.” Let the domain consist of all students in this class.

Express each of the following propositions in regular sentences.(a)∀x(C(x)→D(x))

(b)∀x(¬C(x)→D(x))

(d)∀x(C(x)⊕D(x))

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