1. How can you prove a statement of the form (Vx, P(x))? Provide examples.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.2: Exponents And Radicals
Problem 87E
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1. How can you prove a statement of the
form (Vx, P(x))? Provide examples.
2. How do you prove a statement of the form (
3x, P(x))? Provide examples.
3. Give an example of an open sentence
P(x, y) so that the quantified statement (
Vxy, P(x, y)) is True, while the
quantified statement (‡y\x, P(x, y)) is
False, and explain why this is so.
4. Give an example of an open sentence
P(x, y) so that the quantified statement (
Eyvx, P(x, y)) is True, while the
quantified statement (Vx³y, P(x, y)) is
False, and explain why this is so.
Transcribed Image Text:1. How can you prove a statement of the form (Vx, P(x))? Provide examples. 2. How do you prove a statement of the form ( 3x, P(x))? Provide examples. 3. Give an example of an open sentence P(x, y) so that the quantified statement ( Vxy, P(x, y)) is True, while the quantified statement (‡y\x, P(x, y)) is False, and explain why this is so. 4. Give an example of an open sentence P(x, y) so that the quantified statement ( Eyvx, P(x, y)) is True, while the quantified statement (Vx³y, P(x, y)) is False, and explain why this is so.
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