7. Consider the following statements: P(x, y) = "x R such that Vy R, x+y=0" Q(x, y) = "VxER 3y R such that x+y=0" (a) Explain the difference between what these two statements are claiming. Which of them is true and which of them is false?

7. Consider the following statements: P(x, y) = "x R such that Vy R, x+y=0" Q(x, y) = "VxER 3y R such that x+y=0" (a) Explain the difference between what these two statements are claiming. Which of them is true and which of them is false?

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

Bare bones programming language

Bare bones programming language is a low-level programming language that gives a detailed stepwise description of a program. It has a tight program design and in-depth understanding of the toolchain. It is based on the target environment and is used for safe coding practices. C programming language is a type of bare bones programming language.

Question

please help with both A and B and show work please

7. Consider the following statements:
P(x, y) ="Ex ER such that Vy ER, x+y=0"
Q(x, y) = "Vx R y ER such that x+y=0"
(a) Explain the difference between what these two statements are claiming. Which of them is true and
which of them is false?
(b) Show the negation of each statement.

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