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A One-Sentence Proof That \(\sqrt 2\) Is Irrational

by David M. Bloom (Brooklyn College of CUNY)

This article originally appeared in:
Mathemtics Magazine
October, 1995

Subject classification(s): Numbers and Computation | Number Concepts | Irrational Numbers
Applicable Course(s): 2.1 College Algebra | 3.7 Discrete Math | 4.1 Introduction to Proofs

This is an algebraic version of geometric argument given by Eves that the \(\sqrt 2\) is irrational.


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