Rewrite the following statements and their negations using quantifiers and symbols. Then, argue whether the statement or its negation is true by proving the statement or by finding a counterexample. (a) There is a rational number which is greater than its square root. i. Original statement: ii. Negation: iii. Which is true and why? (b) Each integer has the property that its square is less than or equal to its cube. i. Original statement: ii. Negation: iii. Which is true and why? (c) Every element in the set {0, 1, 2} is greater than or equal to half of its square. i. Original statement: ii. Negation: iii. Which is true and why?

Rewrite the following statements and their negations using quantifiers and symbols. Then, argue whether the statement or its negation is true by proving the statement or by finding a counterexample. (a) There is a rational number which is greater than its square root. i. Original statement: ii. Negation: iii. Which is true and why? (b) Each integer has the property that its square is less than or equal to its cube. i. Original statement: ii. Negation: iii. Which is true and why? (c) Every element in the set {0, 1, 2} is greater than or equal to half of its square. i. Original statement: ii. Negation: iii. Which is true and why?

Elements Of Modern Algebra

8th Edition

ISBN:9781285463230

Author:Gilbert, Linda, Jimmie

Publisher:Gilbert, Linda, Jimmie

Chapter7: Real And Complex Numbers

Section7.1: The Field Of Real Numbers

Problem 20E: Give counterexamples for the following statements. If and are irrational, then is irrational. If ...

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