Examples. Justify your answers briefly. (b) Explain briefly why {re Q2⁰:r<5} |{x € Q≥⁰ : x ≥ 5} is a Dedekind cut. What positive real number does it represent?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.1: Real Numbers
Problem 19E
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Examples. Justify your answers briefly.
(b) Explain briefly why {r € Q2⁰ : x < 5} |{ x = Q≥⁰ : x ≥ 5} is a Dedekind
cut. What positive real number does it represent?
Transcribed Image Text:Examples. Justify your answers briefly. (b) Explain briefly why {r € Q2⁰ : x < 5} |{ x = Q≥⁰ : x ≥ 5} is a Dedekind cut. What positive real number does it represent?
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