4.12 Let I be the set of real numbers that are not rational; elements of II are called irrational numbers. Prove if a < b, then there exists x E I such that a < x < b. Hint: First show {r + √2 : r € Q} ≤ I.
4.12 Let I be the set of real numbers that are not rational; elements of II are called irrational numbers. Prove if a < b, then there exists x E I such that a < x < b. Hint: First show {r + √2 : r € Q} ≤ I.
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.1: Inner Product Spaces
Problem 1BEXP
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