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2.1 3x(x + 2 = 3) 2.2 Vx(x3 = 0) 2.3 Vx7y(x > y) 2.4 3xVy(xy > 0) <

2.1 3x(x + 2 = 3) 2.2 Vx(x3 = 0) 2.3 Vx7y(x > y) 2.4 3xVy(xy > 0) <

Database System Concepts
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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False. If x = -1, then 2x = -2 and -1 > -2. True when the domain consists of all nonnegative integers. For all nonnegative integers x, x ≤ 2x. 2.1 3x(x + 2 = 3) 2.2 Vx(x³ > 0) 2.3 Vx³y(x >y) 2.4 3xvy(xy > 0)
Transcribed Image Text:False. If x = -1, then 2x = -2 and -1 > -2. True when the domain consists of all nonnegative integers. For all nonnegative integers x, x ≤ 2x. 2.1 3x(x + 2 = 3) 2.2 Vx(x³ > 0) 2.3 Vx³y(x >y) 2.4 3xvy(xy > 0)
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